[INFO] fetching crate tender 0.1.1...
[INFO] checking tender-0.1.1 against master#0f6e1ae67854c3c44726e8376144c16b465fe7c6 for pr-129392
[INFO] extracting crate tender 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate tender 0.1.1 on toolchain 0f6e1ae67854c3c44726e8376144c16b465fe7c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tender 0.1.1
[INFO] finished tweaking crates.io crate tender 0.1.1
[INFO] tweaked toml for crates.io crate tender 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 44 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.9.3 (latest: v0.11.5)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.1.1)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sync-wait-group v0.1.1
[INFO] [stderr]   Downloaded watch v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7116c2c64022e35cfaa1f529dbbbbcc870c6329ef75a4f011c9ca2d09b10733b
[INFO] running `Command { std: "docker" "start" "-a" "7116c2c64022e35cfaa1f529dbbbbcc870c6329ef75a4f011c9ca2d09b10733b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7116c2c64022e35cfaa1f529dbbbbcc870c6329ef75a4f011c9ca2d09b10733b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7116c2c64022e35cfaa1f529dbbbbcc870c6329ef75a4f011c9ca2d09b10733b", kill_on_drop: false }`
[INFO] [stdout] 7116c2c64022e35cfaa1f529dbbbbcc870c6329ef75a4f011c9ca2d09b10733b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db8b8cd0dc77f8f343bd8a52f77a6f6c53da91e93239ac2be96db432330cbd4b
[INFO] running `Command { std: "docker" "start" "-a" "db8b8cd0dc77f8f343bd8a52f77a6f6c53da91e93239ac2be96db432330cbd4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking watch v0.2.3
[INFO] [stderr]     Checking sync-wait-group v0.1.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking tender v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/core/observer.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn run(mut self) {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/core/observer.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn run(mut self) {
[INFO] [stdout]    |                ----^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "db8b8cd0dc77f8f343bd8a52f77a6f6c53da91e93239ac2be96db432330cbd4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db8b8cd0dc77f8f343bd8a52f77a6f6c53da91e93239ac2be96db432330cbd4b", kill_on_drop: false }`
[INFO] [stdout] db8b8cd0dc77f8f343bd8a52f77a6f6c53da91e93239ac2be96db432330cbd4b