[INFO] cloning repository https://github.com/hanspetersoen/cocors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hanspetersoen/cocors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanspetersoen%2Fcocors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanspetersoen%2Fcocors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f6c6af7a78d9dbe47e491bceb37f1e24f635750
[INFO] checking hanspetersoen/cocors against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanspetersoen%2Fcocors" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hanspetersoen/cocors
[INFO] finished tweaking git repo https://github.com/hanspetersoen/cocors
[INFO] tweaked toml for git repo https://github.com/hanspetersoen/cocors written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hanspetersoen/cocors on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hanspetersoen/cocors 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d495ab7c00550b059cb91bb5ae62937d9cce189d8a14291a5db3925856a7e9eb
[INFO] running `Command { std: "docker" "start" "-a" "d495ab7c00550b059cb91bb5ae62937d9cce189d8a14291a5db3925856a7e9eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d495ab7c00550b059cb91bb5ae62937d9cce189d8a14291a5db3925856a7e9eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d495ab7c00550b059cb91bb5ae62937d9cce189d8a14291a5db3925856a7e9eb", kill_on_drop: false }`
[INFO] [stdout] d495ab7c00550b059cb91bb5ae62937d9cce189d8a14291a5db3925856a7e9eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4429df6a01b5e008154fe5a2f473f490ec00108b32fbd0005dd143e875f39967
[INFO] running `Command { std: "docker" "start" "-a" "4429df6a01b5e008154fe5a2f473f490ec00108b32fbd0005dd143e875f39967", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking dunce v1.0.2
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking coco_git v0.1.0 (/opt/rustwide/workdir/coco_git)
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]     Checking time v0.3.13
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking globset v0.4.9
[INFO] [stderr]     Checking simplelog v0.12.0
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking assert_fs v1.0.7
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking coco v0.1.0 (/opt/rustwide/workdir/coco)
[INFO] [stderr]     Checking cocors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `commands::*`
[INFO] [stdout]  --> src/cli/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use commands::*;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `commands::*`
[INFO] [stdout]  --> src/cli/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use commands::*;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/commands/lint.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub message: Option<String>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/commands/lint.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub message: Option<String>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cocors` (bin "cocors") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cocors` (bin "cocors" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4429df6a01b5e008154fe5a2f473f490ec00108b32fbd0005dd143e875f39967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4429df6a01b5e008154fe5a2f473f490ec00108b32fbd0005dd143e875f39967", kill_on_drop: false }`
[INFO] [stdout] 4429df6a01b5e008154fe5a2f473f490ec00108b32fbd0005dd143e875f39967