[INFO] fetching crate kern 1.3.4...
[INFO] testing kern-1.3.4 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate kern 1.3.4 into /workspace/builds/worker-39/source
[INFO] validating manifest of crates.io crate kern 1.3.4 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kern 1.3.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate kern 1.3.4
[INFO] tweaked toml for crates.io crate kern 1.3.4 written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate crates.io crate kern 1.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d0d0b75848b0dbb67db4a93d54e6dd1d0a25df8fd44fb46301e9500a1ba9d96
[INFO] running `Command { std: "docker" "start" "-a" "8d0d0b75848b0dbb67db4a93d54e6dd1d0a25df8fd44fb46301e9500a1ba9d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d0d0b75848b0dbb67db4a93d54e6dd1d0a25df8fd44fb46301e9500a1ba9d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d0d0b75848b0dbb67db4a93d54e6dd1d0a25df8fd44fb46301e9500a1ba9d96", kill_on_drop: false }`
[INFO] [stdout] 8d0d0b75848b0dbb67db4a93d54e6dd1d0a25df8fd44fb46301e9500a1ba9d96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e32a2485534238c3797aaaa26fb902709eb545dd0dd0303a40fc850ef827d40
[INFO] running `Command { std: "docker" "start" "-a" "5e32a2485534238c3797aaaa26fb902709eb545dd0dd0303a40fc850ef827d40", kill_on_drop: false }`
[INFO] [stderr]    Compiling kern v1.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `raw`
[INFO] [stdout]   --> src/cli.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     raw: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "5e32a2485534238c3797aaaa26fb902709eb545dd0dd0303a40fc850ef827d40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e32a2485534238c3797aaaa26fb902709eb545dd0dd0303a40fc850ef827d40", kill_on_drop: false }`
[INFO] [stdout] 5e32a2485534238c3797aaaa26fb902709eb545dd0dd0303a40fc850ef827d40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbebd0ca1f648793b606a61061172d35d9474fc2e6f5d1487bb98cd7faa0ef82
[INFO] running `Command { std: "docker" "start" "-a" "fbebd0ca1f648793b606a61061172d35d9474fc2e6f5d1487bb98cd7faa0ef82", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: field is never read: `raw`
[INFO] [stdout]   --> src/cli.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     raw: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kern v1.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `raw`
[INFO] [stdout]   --> src/cli.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     raw: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "fbebd0ca1f648793b606a61061172d35d9474fc2e6f5d1487bb98cd7faa0ef82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbebd0ca1f648793b606a61061172d35d9474fc2e6f5d1487bb98cd7faa0ef82", kill_on_drop: false }`
[INFO] [stdout] fbebd0ca1f648793b606a61061172d35d9474fc2e6f5d1487bb98cd7faa0ef82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 85e0e3faecc7adbfae7e3f754f965b1041eef4bce03ce8ad7dd7ea0d1d7b0cef
[INFO] running `Command { std: "docker" "start" "-a" "85e0e3faecc7adbfae7e3f754f965b1041eef4bce03ce8ad7dd7ea0d1d7b0cef", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `raw`
[INFO] [stderr]   --> src/cli.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     raw: &'a str,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kern` (lib) generated 1 warning
[INFO] [stderr] warning: `kern` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kern-617b67bde188d932)
[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] [stderr]      Running tests/byte.rs (/opt/rustwide/target/debug/deps/byte-31d381c9dc80e993)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_scan ... ok
[INFO] [stdout] test test_splitn ... ok
[INFO] [stdout] test test_split ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/cli.rs (/opt/rustwide/target/debug/deps/cli-f482d4984f2d302b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test command ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/conf.rs (/opt/rustwide/target/debug/deps/conf-9fd27b02e6dd9aff)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/error.rs (/opt/rustwide/target/debug/deps/error-bba376c0cdcd404d)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test read ... ok
[INFO] [stdout] test config ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/meta.rs (/opt/rustwide/target/debug/deps/meta-437ec7659b48e9ae)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_name ... ok
[INFO] [stdout] test test_version ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kern
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/cli.rs - cli::CliBuilder (line 9) ... ok
[INFO] [stdout] test src/cli.rs - cli::Command (line 182) ... ok
[INFO] [stdout] test src/error.rs - error::Fail (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "85e0e3faecc7adbfae7e3f754f965b1041eef4bce03ce8ad7dd7ea0d1d7b0cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85e0e3faecc7adbfae7e3f754f965b1041eef4bce03ce8ad7dd7ea0d1d7b0cef", kill_on_drop: false }`
[INFO] [stdout] 85e0e3faecc7adbfae7e3f754f965b1041eef4bce03ce8ad7dd7ea0d1d7b0cef