[INFO] cloning repository https://github.com/est31/lewton-wiki-tool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/est31/lewton-wiki-tool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fest31%2Flewton-wiki-tool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fest31%2Flewton-wiki-tool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c363c8c27acfd498d6b64441d702137727bbffd6
[INFO] checking est31/lewton-wiki-tool against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fest31%2Flewton-wiki-tool" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/est31/lewton-wiki-tool on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/est31/lewton-wiki-tool
[INFO] finished tweaking git repo https://github.com/est31/lewton-wiki-tool
[INFO] tweaked toml for git repo https://github.com/est31/lewton-wiki-tool written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/est31/lewton-wiki-tool already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d53bd8d9e9feb77df153804cb85f3593a5059c6757c69d2dabf15a2a1736c11
[INFO] running `Command { std: "docker" "start" "-a" "4d53bd8d9e9feb77df153804cb85f3593a5059c6757c69d2dabf15a2a1736c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d53bd8d9e9feb77df153804cb85f3593a5059c6757c69d2dabf15a2a1736c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d53bd8d9e9feb77df153804cb85f3593a5059c6757c69d2dabf15a2a1736c11", kill_on_drop: false }`
[INFO] [stdout] 4d53bd8d9e9feb77df153804cb85f3593a5059c6757c69d2dabf15a2a1736c11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66d92a222b520c2de2740939070fe2b0f462c251a24f4250a267567d00ab2aa8
[INFO] running `Command { std: "docker" "start" "-a" "66d92a222b520c2de2740939070fe2b0f462c251a24f4250a267567d00ab2aa8", kill_on_drop: false }`
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[INFO] [stderr]     Checking cfg-if v0.1.6
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 |             let mut br = BufReader::new(f);
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:196:6
[INFO] [stdout]     |
[INFO] [stdout] 196 |                     writeln!(lf, "{}", msg_str);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 |             let mut br = BufReader::new(f);
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:196:6
[INFO] [stdout]     |
[INFO] [stdout] 196 |                     writeln!(lf, "{}", msg_str);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.48s
[INFO] running `Command { std: "docker" "inspect" "66d92a222b520c2de2740939070fe2b0f462c251a24f4250a267567d00ab2aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66d92a222b520c2de2740939070fe2b0f462c251a24f4250a267567d00ab2aa8", kill_on_drop: false }`
[INFO] [stdout] 66d92a222b520c2de2740939070fe2b0f462c251a24f4250a267567d00ab2aa8