[INFO] cloning repository https://github.com/bdejean/cmd_cache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bdejean/cmd_cache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbdejean%2Fcmd_cache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbdejean%2Fcmd_cache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85a67a50460fa2becb2c697c8b90592fab61e3a1
[INFO] checking bdejean/cmd_cache against master#b359ccf1b0b7b2d2c1c4932344b806e68bd053a9 for pr-105483
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbdejean%2Fcmd_cache" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bdejean/cmd_cache on toolchain b359ccf1b0b7b2d2c1c4932344b806e68bd053a9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bdejean/cmd_cache
[INFO] finished tweaking git repo https://github.com/bdejean/cmd_cache
[INFO] tweaked toml for git repo https://github.com/bdejean/cmd_cache written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/bdejean/cmd_cache already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5756500e60eb7340d12cd0ef688c70ab7dfe7e5d19f143eecf4118872c7b2450
[INFO] running `Command { std: "docker" "start" "-a" "5756500e60eb7340d12cd0ef688c70ab7dfe7e5d19f143eecf4118872c7b2450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5756500e60eb7340d12cd0ef688c70ab7dfe7e5d19f143eecf4118872c7b2450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5756500e60eb7340d12cd0ef688c70ab7dfe7e5d19f143eecf4118872c7b2450", kill_on_drop: false }`
[INFO] [stdout] 5756500e60eb7340d12cd0ef688c70ab7dfe7e5d19f143eecf4118872c7b2450
[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" "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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72eac1383fef9d78e85885f2b036d56125c9456766eedefab067c2fd233826a7
[INFO] running `Command { std: "docker" "start" "-a" "72eac1383fef9d78e85885f2b036d56125c9456766eedefab067c2fd233826a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking cmd_cache v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `clean_env` is never used
[INFO] [stdout]    --> src/main.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn clean_env(key: &str) -> Option<String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `restore_env` is never used
[INFO] [stdout]    --> src/main.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn restore_env(key: &str, value: Option<String>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "72eac1383fef9d78e85885f2b036d56125c9456766eedefab067c2fd233826a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72eac1383fef9d78e85885f2b036d56125c9456766eedefab067c2fd233826a7", kill_on_drop: false }`
[INFO] [stdout] 72eac1383fef9d78e85885f2b036d56125c9456766eedefab067c2fd233826a7