[INFO] fetching crate ru_shell 0.1.2...
[INFO] checking ru_shell-0.1.2 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate ru_shell 0.1.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate ru_shell 0.1.2 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ru_shell 0.1.2
[INFO] finished tweaking crates.io crate ru_shell 0.1.2
[INFO] tweaked toml for crates.io crate ru_shell 0.1.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate ru_shell 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c651c47fe9615286f713514255018d140060f605553fa5c18f4987879764b53
[INFO] running `Command { std: "docker" "start" "-a" "9c651c47fe9615286f713514255018d140060f605553fa5c18f4987879764b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c651c47fe9615286f713514255018d140060f605553fa5c18f4987879764b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c651c47fe9615286f713514255018d140060f605553fa5c18f4987879764b53", kill_on_drop: false }`
[INFO] [stdout] 9c651c47fe9615286f713514255018d140060f605553fa5c18f4987879764b53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96ff1b446ac867a92c21f9507b4dd4ff5dcfb4c18074033fd6a6d3348658bcd6
[INFO] running `Command { std: "docker" "start" "-a" "96ff1b446ac867a92c21f9507b4dd4ff5dcfb4c18074033fd6a6d3348658bcd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking bogobble v0.1.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking str_tools v0.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking transliterate v0.1.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking terminal_size v0.1.15
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking console v0.14.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking err_tools v0.1.1
[INFO] [stderr]     Checking ru_history v0.1.0
[INFO] [stderr]     Checking ru_shell v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `del_char`
[INFO] [stdout]   --> src/ui.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn del_char(s: &mut String) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `del_char`
[INFO] [stdout]   --> src/ui.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn del_char(s: &mut String) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 18.01s
[INFO] running `Command { std: "docker" "inspect" "96ff1b446ac867a92c21f9507b4dd4ff5dcfb4c18074033fd6a6d3348658bcd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ff1b446ac867a92c21f9507b4dd4ff5dcfb4c18074033fd6a6d3348658bcd6", kill_on_drop: false }`
[INFO] [stdout] 96ff1b446ac867a92c21f9507b4dd4ff5dcfb4c18074033fd6a6d3348658bcd6