[INFO] fetching crate slacs-core 0.0.0...
[INFO] checking slacs-core-0.0.0 against try#7c3a44cf5f95fa5cf164a312bdcf845157af7093 for pr-77325
[INFO] extracting crate slacs-core 0.0.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate slacs-core 0.0.0 on toolchain 7c3a44cf5f95fa5cf164a312bdcf845157af7093
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slacs-core 0.0.0
[INFO] finished tweaking crates.io crate slacs-core 0.0.0
[INFO] tweaked toml for crates.io crate slacs-core 0.0.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v0.7.4
[INFO] [stderr]   Downloaded slog-serde v0.7.0
[INFO] [stderr]   Downloaded xi-unicode v0.0.1
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[INFO] [stderr]   Downloaded bytecount v0.1.7
[INFO] [stderr]   Downloaded gapbuffer v0.1.1
[INFO] [stderr]   Downloaded error-chain v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce3d07ad8a858b61f21beb5a42770510d09d1162daf0c043469143d78802ead9
[INFO] running `Command { std: "docker" "start" "-a" "ce3d07ad8a858b61f21beb5a42770510d09d1162daf0c043469143d78802ead9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce3d07ad8a858b61f21beb5a42770510d09d1162daf0c043469143d78802ead9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce3d07ad8a858b61f21beb5a42770510d09d1162daf0c043469143d78802ead9", kill_on_drop: false }`
[INFO] [stdout] ce3d07ad8a858b61f21beb5a42770510d09d1162daf0c043469143d78802ead9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9a3c20940b5749a677f3b623017a87d3fba11d3a3a075cc0a63e83ec5ee9762
[INFO] running `Command { std: "docker" "start" "-a" "d9a3c20940b5749a677f3b623017a87d3fba11d3a3a075cc0a63e83ec5ee9762", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking crossbeam v0.2.12
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[INFO] [stderr]     Checking xi-unicode v0.0.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking aho-corasick v0.5.3
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[INFO] [stderr]     Checking slacs-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/slacs/marks.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new() -> MarkPosition {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cursor`
[INFO] [stdout]   --> src/slacs/marks.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Cursor(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DisplayMark`
[INFO] [stdout]   --> src/slacs/marks.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     DisplayMark(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/slacs/marks.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new() -> MarkPosition {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cursor`
[INFO] [stdout]   --> src/slacs/marks.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Cursor(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DisplayMark`
[INFO] [stdout]   --> src/slacs/marks.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     DisplayMark(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.79s
[INFO] running `Command { std: "docker" "inspect" "d9a3c20940b5749a677f3b623017a87d3fba11d3a3a075cc0a63e83ec5ee9762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9a3c20940b5749a677f3b623017a87d3fba11d3a3a075cc0a63e83ec5ee9762", kill_on_drop: false }`
[INFO] [stdout] d9a3c20940b5749a677f3b623017a87d3fba11d3a3a075cc0a63e83ec5ee9762