[INFO] fetching crate tas 0.1.0...
[INFO] testing tas-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate tas 0.1.0 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tas 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_derive v3.2.15
[INFO] [stderr]   Downloaded serde_derive v1.0.142
[INFO] [stderr]   Downloaded xdg v2.4.1
[INFO] [stderr]   Downloaded serde v1.0.142
[INFO] [stderr]   Downloaded clap v3.2.16
[INFO] [stderr]   Downloaded libc v0.2.127
[INFO] [stderr]   Downloaded serde_json v1.0.83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98119994af9690cae145ef5a64b38836cebcdffceeb60563834a63c2e606d658
[INFO] running `Command { std: "docker" "start" "-a" "98119994af9690cae145ef5a64b38836cebcdffceeb60563834a63c2e606d658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98119994af9690cae145ef5a64b38836cebcdffceeb60563834a63c2e606d658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98119994af9690cae145ef5a64b38836cebcdffceeb60563834a63c2e606d658", kill_on_drop: false }`
[INFO] [stdout] 98119994af9690cae145ef5a64b38836cebcdffceeb60563834a63c2e606d658
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8166eea01b9aa0b058bf77f0a7eae887c4edeec8b453be7ced0f0928ebcb12eb
[INFO] running `Command { std: "docker" "start" "-a" "8166eea01b9aa0b058bf77f0a7eae887c4edeec8b453be7ced0f0928ebcb12eb", 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 version_check v0.9.4
[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 os_str_bytes v6.2.0
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[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 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 16.10s
[INFO] running `Command { std: "docker" "inspect" "8166eea01b9aa0b058bf77f0a7eae887c4edeec8b453be7ced0f0928ebcb12eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8166eea01b9aa0b058bf77f0a7eae887c4edeec8b453be7ced0f0928ebcb12eb", kill_on_drop: false }`
[INFO] [stdout] 8166eea01b9aa0b058bf77f0a7eae887c4edeec8b453be7ced0f0928ebcb12eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8003bfe100a93163428900d51b4b4d3da42a29e301a8bdc490381823eac5ebae
[INFO] running `Command { std: "docker" "start" "-a" "8003bfe100a93163428900d51b4b4d3da42a29e301a8bdc490381823eac5ebae", 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 0.69s
[INFO] running `Command { std: "docker" "inspect" "8003bfe100a93163428900d51b4b4d3da42a29e301a8bdc490381823eac5ebae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8003bfe100a93163428900d51b4b4d3da42a29e301a8bdc490381823eac5ebae", kill_on_drop: false }`
[INFO] [stdout] 8003bfe100a93163428900d51b4b4d3da42a29e301a8bdc490381823eac5ebae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e01ff386622fa31eb78110eb5926496fc8a19b2583924654b1856401c3bdf98f
[INFO] running `Command { std: "docker" "start" "-a" "e01ff386622fa31eb78110eb5926496fc8a19b2583924654b1856401c3bdf98f", 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" -p 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" "e01ff386622fa31eb78110eb5926496fc8a19b2583924654b1856401c3bdf98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e01ff386622fa31eb78110eb5926496fc8a19b2583924654b1856401c3bdf98f", kill_on_drop: false }`
[INFO] [stdout] e01ff386622fa31eb78110eb5926496fc8a19b2583924654b1856401c3bdf98f