[INFO] fetching crate basket 0.0.4...
[INFO] checking basket-0.0.4 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate basket 0.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate basket 0.0.4 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate basket 0.0.4
[INFO] finished tweaking crates.io crate basket 0.0.4
[INFO] tweaked toml for crates.io crate basket 0.0.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60330aef1115a83e3cbc03afc86f2c07eb8b25d2eabd7c5a5fcdf3d42f8df4d3
[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" "60330aef1115a83e3cbc03afc86f2c07eb8b25d2eabd7c5a5fcdf3d42f8df4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60330aef1115a83e3cbc03afc86f2c07eb8b25d2eabd7c5a5fcdf3d42f8df4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60330aef1115a83e3cbc03afc86f2c07eb8b25d2eabd7c5a5fcdf3d42f8df4d3", kill_on_drop: false }`
[INFO] [stdout] 60330aef1115a83e3cbc03afc86f2c07eb8b25d2eabd7c5a5fcdf3d42f8df4d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc3edd0c0d14a95a5ed9ed258c17b762e39f1e67b008f098263108c367321b7f
[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" "dc3edd0c0d14a95a5ed9ed258c17b762e39f1e67b008f098263108c367321b7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking backtrace v0.3.57
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking basket v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/lib.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[serde(rename_all = "lowercase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 20 | #[derive(Deserialize, PartialEq, Debug)]
[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/lib.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[serde(rename_all = "lowercase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 35 | #[derive(Deserialize, Debug, Fail)]
[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/lib.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[serde(rename_all = "lowercase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 20 | #[derive(Deserialize, PartialEq, Debug)]
[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/lib.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[serde(rename_all = "lowercase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 35 | #[derive(Deserialize, Debug, Fail)]
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.11s
[INFO] running `Command { std: "docker" "inspect" "dc3edd0c0d14a95a5ed9ed258c17b762e39f1e67b008f098263108c367321b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc3edd0c0d14a95a5ed9ed258c17b762e39f1e67b008f098263108c367321b7f", kill_on_drop: false }`
[INFO] [stdout] dc3edd0c0d14a95a5ed9ed258c17b762e39f1e67b008f098263108c367321b7f