[INFO] fetching crate ru_shell 0.1.3...
[INFO] checking ru_shell-0.1.3 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate ru_shell 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate ru_shell 0.1.3
[INFO] finished tweaking crates.io crate ru_shell 0.1.3
[INFO] tweaked toml for crates.io crate ru_shell 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ru_shell 0.1.3 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ru_shell 0.1.3 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded transliterate v0.1.1
[INFO] [stderr]   Downloaded bogobble v0.1.1
[INFO] [stderr]   Downloaded str_tools v0.1.0
[INFO] [stderr]   Downloaded ctrlc v3.2.0
[INFO] [stderr]   Downloaded ru_history v0.1.0
[INFO] [stderr]   Downloaded err_tools v0.1.1
[INFO] [stderr]   Downloaded nix v0.22.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f32c89a4a27bdb0fe8235a7d584674e50d48ab7c3528852b40c1c609e68c08c
[INFO] running `Command { std: "docker" "start" "-a" "2f32c89a4a27bdb0fe8235a7d584674e50d48ab7c3528852b40c1c609e68c08c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f32c89a4a27bdb0fe8235a7d584674e50d48ab7c3528852b40c1c609e68c08c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f32c89a4a27bdb0fe8235a7d584674e50d48ab7c3528852b40c1c609e68c08c", kill_on_drop: false }`
[INFO] [stdout] 2f32c89a4a27bdb0fe8235a7d584674e50d48ab7c3528852b40c1c609e68c08c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e57ff15cfd7eedec20ddf6e97377f67e07f00343926029736bc83194c9ae0d6a
[INFO] running `Command { std: "docker" "start" "-a" "e57ff15cfd7eedec20ddf6e97377f67e07f00343926029736bc83194c9ae0d6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking bogobble v0.1.1
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking str_tools v0.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking transliterate v0.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nix v0.22.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ctrlc v3.2.0
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking err_tools v0.1.1
[INFO] [stderr]     Checking ru_history v0.1.0
[INFO] [stderr]     Checking ru_shell v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `del_char` is never used
[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 `del_char` is never used
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.89s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bogobble v0.1.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "e57ff15cfd7eedec20ddf6e97377f67e07f00343926029736bc83194c9ae0d6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e57ff15cfd7eedec20ddf6e97377f67e07f00343926029736bc83194c9ae0d6a", kill_on_drop: false }`
[INFO] [stdout] e57ff15cfd7eedec20ddf6e97377f67e07f00343926029736bc83194c9ae0d6a