[INFO] fetching crate bustabit 0.2.1...
[INFO] checking bustabit-0.2.1 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate bustabit 0.2.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate bustabit 0.2.1 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bustabit 0.2.1
[INFO] finished tweaking crates.io crate bustabit 0.2.1
[INFO] tweaked toml for crates.io crate bustabit 0.2.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate bustabit 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_cpus v1.11.0
[INFO] [stderr]   Downloaded tinytemplate v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7a6c2dc593f9232a514123f1b79defd9e6fac9ac77f78ac6b28417f03937d5c
[INFO] running `Command { std: "docker" "start" "-a" "d7a6c2dc593f9232a514123f1b79defd9e6fac9ac77f78ac6b28417f03937d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7a6c2dc593f9232a514123f1b79defd9e6fac9ac77f78ac6b28417f03937d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7a6c2dc593f9232a514123f1b79defd9e6fac9ac77f78ac6b28417f03937d5c", kill_on_drop: false }`
[INFO] [stdout] d7a6c2dc593f9232a514123f1b79defd9e6fac9ac77f78ac6b28417f03937d5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc92a844374dd3265e43b3a997d9c51e3eefbf9dfce6100363f72f4547b6e952
[INFO] running `Command { std: "docker" "start" "-a" "dc92a844374dd3265e43b3a997d9c51e3eefbf9dfce6100363f72f4547b6e952", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.8.1
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking bustabit v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]     Checking num_cpus v1.11.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> examples/iterator.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut game:Game = Game::new(&s).unwrap();
[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 [unoptimized + debuginfo] target(s) in 22.77s
[INFO] running `Command { std: "docker" "inspect" "dc92a844374dd3265e43b3a997d9c51e3eefbf9dfce6100363f72f4547b6e952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc92a844374dd3265e43b3a997d9c51e3eefbf9dfce6100363f72f4547b6e952", kill_on_drop: false }`
[INFO] [stdout] dc92a844374dd3265e43b3a997d9c51e3eefbf9dfce6100363f72f4547b6e952