[INFO] cloning repository https://github.com/itskihaga/20211222-rust-mob
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itskihaga/20211222-rust-mob" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitskihaga%2F20211222-rust-mob", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitskihaga%2F20211222-rust-mob'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85ff72ac96738c9b6b0b52df068803e03940b2b0
[INFO] checking itskihaga/20211222-rust-mob against master#d8810e3e2dab96778d20dd6d746ff95465515509 for pr-137033
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitskihaga%2F20211222-rust-mob" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/itskihaga/20211222-rust-mob on toolchain d8810e3e2dab96778d20dd6d746ff95465515509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/itskihaga/20211222-rust-mob
[INFO] finished tweaking git repo https://github.com/itskihaga/20211222-rust-mob
[INFO] tweaked toml for git repo https://github.com/itskihaga/20211222-rust-mob written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/itskihaga/20211222-rust-mob 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" "+d8810e3e2dab96778d20dd6d746ff95465515509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46bbad5447d95dc43c875e06e437274117bb4cd4bceec111374843aaa0fb8b6c
[INFO] running `Command { std: "docker" "start" "-a" "46bbad5447d95dc43c875e06e437274117bb4cd4bceec111374843aaa0fb8b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46bbad5447d95dc43c875e06e437274117bb4cd4bceec111374843aaa0fb8b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46bbad5447d95dc43c875e06e437274117bb4cd4bceec111374843aaa0fb8b6c", kill_on_drop: false }`
[INFO] [stdout] 46bbad5447d95dc43c875e06e437274117bb4cd4bceec111374843aaa0fb8b6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 113db55c78eef8c80db11e294f0ad4a424be74d0b5edfba7124f9359ceecf7c2
[INFO] running `Command { std: "docker" "start" "-a" "113db55c78eef8c80db11e294f0ad4a424be74d0b5edfba7124f9359ceecf7c2", kill_on_drop: false }`
[INFO] [stderr]     Checking mob20211222 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ffi::OsString` and `io::Error`
[INFO] [stdout]  --> src/main.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{read_dir, DirEntry}, io::Error, ffi::OsString};
[INFO] [stdout]   |                                     ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ffi::OsString` and `io::Error`
[INFO] [stdout]  --> src/main.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{read_dir, DirEntry}, io::Error, ffi::OsString};
[INFO] [stdout]   |                                     ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |     } else if let Err(e) = entries {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `output` is never used
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn output(str: String) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |     } else if let Err(e) = entries {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `output` is never used
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn output(str: String) {
[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 0.25s
[INFO] running `Command { std: "docker" "inspect" "113db55c78eef8c80db11e294f0ad4a424be74d0b5edfba7124f9359ceecf7c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "113db55c78eef8c80db11e294f0ad4a424be74d0b5edfba7124f9359ceecf7c2", kill_on_drop: false }`
[INFO] [stdout] 113db55c78eef8c80db11e294f0ad4a424be74d0b5edfba7124f9359ceecf7c2