[INFO] fetching crate tas 0.1.0...
[INFO] testing tas-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate tas 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate tas 0.1.0
[INFO] finished tweaking crates.io crate tas 0.1.0
[INFO] tweaked toml for crates.io crate tas 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tas 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tas 0.1.0 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.32
[INFO] [stderr]   Downloaded serde v1.0.142
[INFO] [stderr]   Downloaded thiserror v1.0.32
[INFO] [stderr]   Downloaded heck v0.4.0
[INFO] [stderr]   Downloaded once_cell v1.13.0
[INFO] [stderr]   Downloaded serde_json v1.0.83
[INFO] [stderr]   Downloaded proc-macro2 v1.0.43
[INFO] [stderr]   Downloaded textwrap v0.15.0
[INFO] [stderr]   Downloaded syn v1.0.99
[INFO] [stderr]   Downloaded clap_derive v3.2.15
[INFO] [stderr]   Downloaded itoa v1.0.3
[INFO] [stderr]   Downloaded serde_derive v1.0.142
[INFO] [stderr]   Downloaded unicode-ident v1.0.3
[INFO] [stderr]   Downloaded xdg v2.4.1
[INFO] [stderr]   Downloaded os_str_bytes v6.2.0
[INFO] [stderr]   Downloaded clap v3.2.16
[INFO] [stderr]   Downloaded libc v0.2.127
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c34038afb5f186db6e29b424abd9468acf806c498b9a6a51aba95a7a9605e01c
[INFO] running `Command { std: "docker" "start" "-a" "c34038afb5f186db6e29b424abd9468acf806c498b9a6a51aba95a7a9605e01c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c34038afb5f186db6e29b424abd9468acf806c498b9a6a51aba95a7a9605e01c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c34038afb5f186db6e29b424abd9468acf806c498b9a6a51aba95a7a9605e01c", kill_on_drop: false }`
[INFO] [stdout] c34038afb5f186db6e29b424abd9468acf806c498b9a6a51aba95a7a9605e01c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc35cd49d40f388682ec0ecd102ddba4bfdac2bb607f84c344888997947e0ecf
[INFO] running `Command { std: "docker" "start" "-a" "fc35cd49d40f388682ec0ecd102ddba4bfdac2bb607f84c344888997947e0ecf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]    Compiling serde_derive v1.0.142
[INFO] [stderr]    Compiling serde v1.0.142
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]    Compiling os_str_bytes v6.2.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling xdg v2.4.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]    Compiling clap v3.2.16
[INFO] [stderr]    Compiling tas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let mut task = &mut tasks[idx - 1];
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.78s
[INFO] running `Command { std: "docker" "inspect" "fc35cd49d40f388682ec0ecd102ddba4bfdac2bb607f84c344888997947e0ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc35cd49d40f388682ec0ecd102ddba4bfdac2bb607f84c344888997947e0ecf", kill_on_drop: false }`
[INFO] [stdout] fc35cd49d40f388682ec0ecd102ddba4bfdac2bb607f84c344888997947e0ecf
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b58c966bf6d31686d4a6127a897441f1f26dd473f9ee62a8c9ba4801c3d537f8
[INFO] running `Command { std: "docker" "start" "-a" "b58c966bf6d31686d4a6127a897441f1f26dd473f9ee62a8c9ba4801c3d537f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling tas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let mut task = &mut tasks[idx - 1];
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "b58c966bf6d31686d4a6127a897441f1f26dd473f9ee62a8c9ba4801c3d537f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b58c966bf6d31686d4a6127a897441f1f26dd473f9ee62a8c9ba4801c3d537f8", kill_on_drop: false }`
[INFO] [stdout] b58c966bf6d31686d4a6127a897441f1f26dd473f9ee62a8c9ba4801c3d537f8
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9a16f7318e9dffc6e41fb5936222f0b8bbd9e706d56afabd33cb7c358933923b
[INFO] running `Command { std: "docker" "start" "-a" "9a16f7318e9dffc6e41fb5936222f0b8bbd9e706d56afabd33cb7c358933923b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |             let mut task = &mut tasks[idx - 1];
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tas` (bin "tas" test) generated 1 warning (run `cargo fix --bin "tas" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tas-1a7d0e9cb955cb3b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9a16f7318e9dffc6e41fb5936222f0b8bbd9e706d56afabd33cb7c358933923b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a16f7318e9dffc6e41fb5936222f0b8bbd9e706d56afabd33cb7c358933923b", kill_on_drop: false }`
[INFO] [stdout] 9a16f7318e9dffc6e41fb5936222f0b8bbd9e706d56afabd33cb7c358933923b