[INFO] fetching crate mirai_rs 0.1.1...
[INFO] testing mirai_rs-0.1.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate mirai_rs 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mirai_rs 0.1.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mirai_rs 0.1.1
[INFO] finished tweaking crates.io crate mirai_rs 0.1.1
[INFO] tweaked toml for crates.io crate mirai_rs 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate mirai_rs 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bf97915f93d19416f3817c28729fcf52d8318c2c6c353a16aedc1c560af6534
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2bf97915f93d19416f3817c28729fcf52d8318c2c6c353a16aedc1c560af6534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bf97915f93d19416f3817c28729fcf52d8318c2c6c353a16aedc1c560af6534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf97915f93d19416f3817c28729fcf52d8318c2c6c353a16aedc1c560af6534", kill_on_drop: false }`
[INFO] [stdout] 2bf97915f93d19416f3817c28729fcf52d8318c2c6c353a16aedc1c560af6534
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a03f81684973b954460610e5ec0de84ca4e7f0cb9cfbd17c7d3ca82a9e61601b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a03f81684973b954460610e5ec0de84ca4e7f0cb9cfbd17c7d3ca82a9e61601b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling cc v1.0.51
[INFO] [stderr]    Compiling arc-swap v0.4.6
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling pin-project-internal v0.4.9
[INFO] [stderr]    Compiling tokio v0.2.19
[INFO] [stderr]    Compiling pin-project v0.4.9
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.4
[INFO] [stderr]    Compiling hyper v0.13.5
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling reqwest v0.10.4
[INFO] [stderr]    Compiling mirai_rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/session.rs:134:11
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[serde(rename_all = "camelCase")]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 135 |         #[derive(Serialize)]
[INFO] [stdout]     |                  --------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 22 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 38 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:89:3
[INFO] [stdout]    |
[INFO] [stdout] 89 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 90 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/message/event.rs:111:3
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[serde(untagged)]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 112 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]     |                        ----------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/message/event.rs:134:3
[INFO] [stdout]     |
[INFO] [stdout] 134 | #[serde(untagged)]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 135 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stdout]     |                        ----------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/single.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 27 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/send.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[serde(rename_all = "camelCase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 12 | #[derive(Serialize)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/send.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[serde(rename_all = "camelCase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 22 | #[derive(Deserialize)]
[INFO] [stdout]    |          ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/session.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "a03f81684973b954460610e5ec0de84ca4e7f0cb9cfbd17c7d3ca82a9e61601b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03f81684973b954460610e5ec0de84ca4e7f0cb9cfbd17c7d3ca82a9e61601b", kill_on_drop: false }`
[INFO] [stdout] a03f81684973b954460610e5ec0de84ca4e7f0cb9cfbd17c7d3ca82a9e61601b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a25d7c0b5f86e516af3e3a9aff48a71e5f177bda7d35a652046edd345d0b69cc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a25d7c0b5f86e516af3e3a9aff48a71e5f177bda7d35a652046edd345d0b69cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/session.rs:134:11
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[serde(rename_all = "camelCase")]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 135 |         #[derive(Serialize)]
[INFO] [stdout]     |                  --------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 22 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 38 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:89:3
[INFO] [stdout]    |
[INFO] [stdout] 89 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 90 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/message/event.rs:111:3
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[serde(untagged)]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 112 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]     |                        ----------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/message/event.rs:134:3
[INFO] [stdout]     |
[INFO] [stdout] 134 | #[serde(untagged)]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 135 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stdout]     |                        ----------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/single.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 27 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/send.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[serde(rename_all = "camelCase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 12 | #[derive(Serialize)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/send.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[serde(rename_all = "camelCase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 22 | #[derive(Deserialize)]
[INFO] [stdout]    |          ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/session.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mirai_rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/subscribe.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 | ...                   subscriber.send(mp.clone());            // TODO: use Result
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/session.rs:134:11
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[serde(rename_all = "camelCase")]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 135 |         #[derive(Serialize)]
[INFO] [stdout]     |                  --------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 22 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 38 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/event.rs:89:3
[INFO] [stdout]    |
[INFO] [stdout] 89 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 90 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/message/event.rs:111:3
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[serde(untagged)]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 112 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stdout]     |                        ----------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]    --> src/message/event.rs:134:3
[INFO] [stdout]     |
[INFO] [stdout] 134 | #[serde(untagged)]
[INFO] [stdout]     |   ^^^^^
[INFO] [stdout] 135 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stdout]     |                        ----------- the attribute is introduced here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/single.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[serde(tag = "type")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 27 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/send.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[serde(rename_all = "camelCase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 12 | #[derive(Serialize)]
[INFO] [stdout]    |          --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/message/send.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[serde(rename_all = "camelCase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 22 | #[derive(Deserialize)]
[INFO] [stdout]    |          ----------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/session.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 19.02s
[INFO] running `Command { std: "docker" "inspect" "a25d7c0b5f86e516af3e3a9aff48a71e5f177bda7d35a652046edd345d0b69cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a25d7c0b5f86e516af3e3a9aff48a71e5f177bda7d35a652046edd345d0b69cc", kill_on_drop: false }`
[INFO] [stdout] a25d7c0b5f86e516af3e3a9aff48a71e5f177bda7d35a652046edd345d0b69cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bf7093650d789f1d6fa0a21431aba28493df79ed4892c7eff0b876dfa2486d7e
[INFO] running `Command { std: "docker" "start" "-a" "bf7093650d789f1d6fa0a21431aba28493df79ed4892c7eff0b876dfa2486d7e", kill_on_drop: false }`
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]    --> src/session.rs:134:11
[INFO] [stderr]     |
[INFO] [stderr] 134 |         #[serde(rename_all = "camelCase")]
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr] 135 |         #[derive(Serialize)]
[INFO] [stderr]     |                  --------- the attribute is introduced here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/event.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[serde(tag = "type")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 22 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stderr]    |                        ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/event.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[serde(tag = "type")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 38 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stderr]    |                        ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/event.rs:89:3
[INFO] [stderr]    |
[INFO] [stderr] 89 | #[serde(tag = "type")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 90 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stderr]    |                        ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]    --> src/message/event.rs:111:3
[INFO] [stderr]     |
[INFO] [stderr] 111 | #[serde(untagged)]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr] 112 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stderr]     |                        ----------- the attribute is introduced here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]    --> src/message/event.rs:134:3
[INFO] [stderr]     |
[INFO] [stderr] 134 | #[serde(untagged)]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr] 135 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stderr]     |                        ----------- the attribute is introduced here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/single.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[serde(tag = "type")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 27 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stderr]    |                        ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/send.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[serde(rename_all = "camelCase")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 12 | #[derive(Serialize)]
[INFO] [stderr]    |          --------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/send.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[serde(rename_all = "camelCase")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 22 | #[derive(Deserialize)]
[INFO] [stderr]    |          ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `msg`
[INFO] [stderr]   --> src/session.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub msg: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]    --> src/session.rs:134:11
[INFO] [stderr]     |
[INFO] [stderr] 134 |         #[serde(rename_all = "camelCase")]
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr] 135 |         #[derive(Serialize)]
[INFO] [stderr]     |                  --------- the attribute is introduced here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/event.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[serde(tag = "type")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 22 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stderr]    |                        ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/event.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[serde(tag = "type")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 38 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stderr]    |                        ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/event.rs:89:3
[INFO] [stderr]    |
[INFO] [stderr] 89 | #[serde(tag = "type")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 90 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stderr]    |                        ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]    --> src/message/event.rs:111:3
[INFO] [stderr]     |
[INFO] [stderr] 111 | #[serde(untagged)]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr] 112 | #[derive(Clone, Debug, Deserialize)]
[INFO] [stderr]     |                        ----------- the attribute is introduced here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]    --> src/message/event.rs:134:3
[INFO] [stderr]     |
[INFO] [stderr] 134 | #[serde(untagged)]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr] 135 | #[derive(Debug, Clone, Deserialize)]
[INFO] [stderr]     |                        ----------- the attribute is introduced here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/single.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[serde(tag = "type")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 27 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stderr]    |                        ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/send.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[serde(rename_all = "camelCase")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 12 | #[derive(Serialize)]
[INFO] [stderr]    |          --------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: derive helper attribute is used before it is introduced
[INFO] [stderr]   --> src/message/send.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[serde(rename_all = "camelCase")]
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 22 | #[derive(Deserialize)]
[INFO] [stderr]    |          ----------- the attribute is introduced here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `msg`
[INFO] [stderr]   --> src/session.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub msg: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/subscribe.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 | ...                   subscriber.send(mp.clone());            // TODO: use Result
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mirai-c40a64cdee089279)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mirai
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/session.rs - session (line 25) ... FAILED
[INFO] [stdout] test src/session.rs - session (line 34) ... FAILED
[INFO] [stdout] test src/message/channel.rs - message::channel (line 13) ... FAILED
[INFO] [stdout] test src/session.rs - session (line 19) ... FAILED
[INFO] [stdout] test src/message/mod.rs - message (line 17) ... ok
[INFO] [stdout] test src/session.rs - session (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/session.rs - session (line 25) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `session` in this scope
[INFO] [stdout]  --> src/session.rs:27:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | session.verify(account);
[INFO] [stdout]   | ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/session.rs - session (line 34) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `session` in this scope
[INFO] [stdout]  --> src/session.rs:35:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | session.release(account);
[INFO] [stdout]   | ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `account` in this scope
[INFO] [stdout]  --> src/session.rs:35:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | session.release(account);
[INFO] [stdout]   |                 ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/message/channel.rs - message::channel (line 13) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `my_session` in this scope
[INFO] [stdout]  --> src/message/channel.rs:17:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | let session: Session = my_session;
[INFO] [stdout]   |                        ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `group` in this scope
[INFO] [stdout]  --> src/message/channel.rs:18:44
[INFO] [stdout]   |
[INFO] [stdout] 8 | let target_channel = MessageChannel::Group(group);
[INFO] [stdout]   |                                            ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]   --> src/message/channel.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_message_channel_rs_13_0() {
[INFO] [stdout]    |                                         ----------------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 11 | session.send_message(&target_channel, &message).await.unwrap();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/session.rs - session (line 19) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `server` in this scope
[INFO] [stdout]  --> src/session.rs:20:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | let session = server.auth("auth_key_should_be_kept_secret");
[INFO] [stdout]   |               ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/message/channel.rs - message::channel (line 13)
[INFO] [stdout]     src/session.rs - session (line 19)
[INFO] [stdout]     src/session.rs - session (line 25)
[INFO] [stdout]     src/session.rs - session (line 34)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.81s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "bf7093650d789f1d6fa0a21431aba28493df79ed4892c7eff0b876dfa2486d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf7093650d789f1d6fa0a21431aba28493df79ed4892c7eff0b876dfa2486d7e", kill_on_drop: false }`
[INFO] [stdout] bf7093650d789f1d6fa0a21431aba28493df79ed4892c7eff0b876dfa2486d7e