[INFO] cloning repository https://github.com/katharostech/PolyFS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/katharostech/PolyFS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkatharostech%2FPolyFS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkatharostech%2FPolyFS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5565176634fd6d29c7866fb68526aec5066a4dd
[INFO] checking katharostech/PolyFS against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkatharostech%2FPolyFS" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/katharostech/PolyFS on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/katharostech/PolyFS
[INFO] finished tweaking git repo https://github.com/katharostech/PolyFS
[INFO] tweaked toml for git repo https://github.com/katharostech/PolyFS written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/katharostech/PolyFS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0840a0af63b2a2854d25780a0e8895af1ac1575abe91054fedf7bd2e5f41eac0
[INFO] running `Command { std: "docker" "start" "-a" "0840a0af63b2a2854d25780a0e8895af1ac1575abe91054fedf7bd2e5f41eac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0840a0af63b2a2854d25780a0e8895af1ac1575abe91054fedf7bd2e5f41eac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0840a0af63b2a2854d25780a0e8895af1ac1575abe91054fedf7bd2e5f41eac0", kill_on_drop: false }`
[INFO] [stdout] 0840a0af63b2a2854d25780a0e8895af1ac1575abe91054fedf7bd2e5f41eac0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc969184a61c562798caa3e843c6ce03add2bbd636bd525b6733e6474708488c
[INFO] running `Command { std: "docker" "start" "-a" "bc969184a61c562798caa3e843c6ce03add2bbd636bd525b6733e6474708488c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling libsqlite3-sys v0.12.0
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling bincode v1.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking syslog v4.0.1
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking fern v0.5.8
[INFO] [stderr]    Compiling diesel_derives v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling diesel v1.4.2
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking migrations_internals v1.4.0
[INFO] [stderr]    Compiling migrations_macros v1.4.0
[INFO] [stderr]     Checking diesel_migrations v1.4.0
[INFO] [stderr]     Checking polyfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cli/config.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut config;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/cli/config.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut config;
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.25s
[INFO] running `Command { std: "docker" "inspect" "bc969184a61c562798caa3e843c6ce03add2bbd636bd525b6733e6474708488c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc969184a61c562798caa3e843c6ce03add2bbd636bd525b6733e6474708488c", kill_on_drop: false }`
[INFO] [stdout] bc969184a61c562798caa3e843c6ce03add2bbd636bd525b6733e6474708488c