[INFO] cloning repository https://github.com/Sayama0310/toy_shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sayama0310/toy_shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSayama0310%2Ftoy_shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSayama0310%2Ftoy_shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 569739e64d0d5a5500ccb5e467b1a3f38a347af2
[INFO] checking Sayama0310/toy_shell/569739e64d0d5a5500ccb5e467b1a3f38a347af2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSayama0310%2Ftoy_shell" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sayama0310/toy_shell on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sayama0310/toy_shell
[INFO] finished tweaking git repo https://github.com/Sayama0310/toy_shell
[INFO] tweaked toml for git repo https://github.com/Sayama0310/toy_shell written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Sayama0310/toy_shell 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v11.0.0
[INFO] [stderr]   Downloaded fd-lock v3.0.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b55d8dd4ecf55be39af51b5d34baf19673a5c26774016f9621c3e3ffc39852e8
[INFO] running `Command { std: "docker" "start" "-a" "b55d8dd4ecf55be39af51b5d34baf19673a5c26774016f9621c3e3ffc39852e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b55d8dd4ecf55be39af51b5d34baf19673a5c26774016f9621c3e3ffc39852e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b55d8dd4ecf55be39af51b5d34baf19673a5c26774016f9621c3e3ffc39852e8", kill_on_drop: false }`
[INFO] [stdout] b55d8dd4ecf55be39af51b5d34baf19673a5c26774016f9621c3e3ffc39852e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28bedb0cde74bd4de49f8c9f8f1c1db36dcb4b7d35bc11318866e9556e8ac2bb
[INFO] running `Command { std: "docker" "start" "-a" "28bedb0cde74bd4de49f8c9f8f1c1db36dcb4b7d35bc11318866e9556e8ac2bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling rustix v0.37.20
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking fd-lock v3.0.12
[INFO] [stderr]     Checking rustyline v11.0.0
[INFO] [stderr]     Checking toy_shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/core/command.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |                     _ => unreachable!("ToySh: execvp should not return Ok(_)"),
[INFO] [stdout]    |                     ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/core/command.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     Err(Errno::EACCES) => {
[INFO] [stdout]    |                     ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 68 |                     Err(Errno::ENOENT) => {
[INFO] [stdout]    |                     ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 72 |                     Err(err) => {
[INFO] [stdout]    |                     -------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 76 |                     _ => unreachable!("ToySh: execvp should not return Ok(_)"),
[INFO] [stdout]    |                     ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/core/command.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |                     _ => unreachable!("ToySh: execvp should not return Ok(_)"),
[INFO] [stdout]    |                     ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/core/command.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     Err(Errno::EACCES) => {
[INFO] [stdout]    |                     ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 68 |                     Err(Errno::ENOENT) => {
[INFO] [stdout]    |                     ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 72 |                     Err(err) => {
[INFO] [stdout]    |                     -------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 76 |                     _ => unreachable!("ToySh: execvp should not return Ok(_)"),
[INFO] [stdout]    |                     ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` 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` profile [unoptimized + debuginfo] target(s) in 11.22s
[INFO] running `Command { std: "docker" "inspect" "28bedb0cde74bd4de49f8c9f8f1c1db36dcb4b7d35bc11318866e9556e8ac2bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28bedb0cde74bd4de49f8c9f8f1c1db36dcb4b7d35bc11318866e9556e8ac2bb", kill_on_drop: false }`
[INFO] [stdout] 28bedb0cde74bd4de49f8c9f8f1c1db36dcb4b7d35bc11318866e9556e8ac2bb