[INFO] cloning repository https://github.com/Quyzi/mc6
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Quyzi/mc6" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuyzi%2Fmc6", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuyzi%2Fmc6'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e10b608bcbf26f227f1ec6b40899453df1d77cf5
[INFO] checking Quyzi/mc6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuyzi%2Fmc6" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Quyzi/mc6
[INFO] finished tweaking git repo https://github.com/Quyzi/mc6
[INFO] tweaked toml for git repo https://github.com/Quyzi/mc6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Quyzi/mc6 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Quyzi/mc6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f2f9fccdf7c418945d8dcefb8b6a8fea5b37451f8b65908d6d8f80ca1bf7bee
[INFO] running `Command { std: "docker" "start" "-a" "3f2f9fccdf7c418945d8dcefb8b6a8fea5b37451f8b65908d6d8f80ca1bf7bee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f2f9fccdf7c418945d8dcefb8b6a8fea5b37451f8b65908d6d8f80ca1bf7bee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f2f9fccdf7c418945d8dcefb8b6a8fea5b37451f8b65908d6d8f80ca1bf7bee", kill_on_drop: false }`
[INFO] [stdout] 3f2f9fccdf7c418945d8dcefb8b6a8fea5b37451f8b65908d6d8f80ca1bf7bee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e5950709c542e91fefab5da544dd3d57f9503c12b7a6b25daf6494fcbc1b64a
[INFO] running `Command { std: "docker" "start" "-a" "3e5950709c542e91fefab5da544dd3d57f9503c12b7a6b25daf6494fcbc1b64a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]     Checking typeid v1.0.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling uncased v0.9.10
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling figment v0.10.19
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.121
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking proc-macro2 v1.0.86
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking quote v1.0.36
[INFO] [stderr]     Checking indexmap v2.3.0
[INFO] [stderr]     Checking dashmap v6.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling zerocopy-derive v0.6.6
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stderr]     Checking tokio v1.39.2
[INFO] [stderr]     Checking zerocopy v0.6.6
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking ppv-lite86 v0.2.18
[INFO] [stderr]     Checking thiserror v1.0.63
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking serde_fmt v1.0.3
[INFO] [stderr]     Checking erased-serde v0.4.5
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking value-bag-serde1 v1.9.0
[INFO] [stderr]     Checking value-bag v1.9.0
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking mc6_backend v0.1.0 (/opt/rustwide/workdir/backend)
[INFO] [stdout] warning: fields `object` and `meta` are never read
[INFO] [stdout]   --> backend/src/meta.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct ObjectWithMetadata {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] 30 |     pub(crate) object: Vec<u8>,
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 31 |     pub(crate) meta: Metadata,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> backend/src/config.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |             path: PathBuf::from_str("data/").unwrap(),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mc6_backend` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `object` and `meta` are never read
[INFO] [stdout]   --> backend/src/meta.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct ObjectWithMetadata {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] 30 |     pub(crate) object: Vec<u8>,
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 31 |     pub(crate) meta: Metadata,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> backend/src/config.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |             path: PathBuf::from_str("data/").unwrap(),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mc6_backend` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3e5950709c542e91fefab5da544dd3d57f9503c12b7a6b25daf6494fcbc1b64a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e5950709c542e91fefab5da544dd3d57f9503c12b7a6b25daf6494fcbc1b64a", kill_on_drop: false }`
[INFO] [stdout] 3e5950709c542e91fefab5da544dd3d57f9503c12b7a6b25daf6494fcbc1b64a