[INFO] fetching crate crfs 0.2.0...
[INFO] testing crfs-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate crfs 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate crfs 0.2.0 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 crfs 0.2.0
[INFO] finished tweaking crates.io crate crfs 0.2.0
[INFO] tweaked toml for crates.io crate crfs 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 45739108eca8f9215d710f858e1629ea72161d5370231f2388f3b70d01fe1d52
[INFO] running `Command { std: "docker" "start" "-a" "45739108eca8f9215d710f858e1629ea72161d5370231f2388f3b70d01fe1d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45739108eca8f9215d710f858e1629ea72161d5370231f2388f3b70d01fe1d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45739108eca8f9215d710f858e1629ea72161d5370231f2388f3b70d01fe1d52", kill_on_drop: false }`
[INFO] [stdout] 45739108eca8f9215d710f858e1629ea72161d5370231f2388f3b70d01fe1d52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0d64c2c4d60388159a76dbcd4912abf9554ce5d28b6dc19331dffde96e7f29be
[INFO] running `Command { std: "docker" "start" "-a" "0d64c2c4d60388159a76dbcd4912abf9554ce5d28b6dc19331dffde96e7f29be", kill_on_drop: false }`
[INFO] [stderr]    Compiling array-init v2.0.0
[INFO] [stderr]    Compiling jhash v0.1.1
[INFO] [stderr]    Compiling cqdb v0.5.6
[INFO] [stderr]    Compiling crfs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `num_attrs`
[INFO] [stdout]   --> src/tagger.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     num_attrs: u32,
[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 2.08s
[INFO] running `Command { std: "docker" "inspect" "0d64c2c4d60388159a76dbcd4912abf9554ce5d28b6dc19331dffde96e7f29be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d64c2c4d60388159a76dbcd4912abf9554ce5d28b6dc19331dffde96e7f29be", kill_on_drop: false }`
[INFO] [stdout] 0d64c2c4d60388159a76dbcd4912abf9554ce5d28b6dc19331dffde96e7f29be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] dde38cc698d80848b740b46e7d1efd65d2041f405e0d4dad6d0eae249f6c38dc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dde38cc698d80848b740b46e7d1efd65d2041f405e0d4dad6d0eae249f6c38dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crfsuite-sys v0.3.1
[INFO] [stdout] warning: field is never read: `num_attrs`
[INFO] [stdout]   --> src/tagger.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     num_attrs: u32,
[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]    Compiling crfsuite v0.3.1
[INFO] [stderr]    Compiling crfs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `num_attrs`
[INFO] [stdout]   --> src/tagger.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     num_attrs: u32,
[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 8.01s
[INFO] running `Command { std: "docker" "inspect" "dde38cc698d80848b740b46e7d1efd65d2041f405e0d4dad6d0eae249f6c38dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dde38cc698d80848b740b46e7d1efd65d2041f405e0d4dad6d0eae249f6c38dc", kill_on_drop: false }`
[INFO] [stdout] dde38cc698d80848b740b46e7d1efd65d2041f405e0d4dad6d0eae249f6c38dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 8363026bd38267dee3aeb1b2be51b4cb0d81a0a1d9d52c63da15edb178a311fe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8363026bd38267dee3aeb1b2be51b4cb0d81a0a1d9d52c63da15edb178a311fe", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `num_attrs`
[INFO] [stderr]   --> src/tagger.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     num_attrs: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `crfs` (lib) generated 1 warning
[INFO] [stderr] warning: `crfs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/crfs-faadfc154aee9d55)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test context::tests::test_context_new ... ok
[INFO] [stdout] test context::tests::test_context_reset ... ok
[INFO] [stdout] test model::tests::test_model_tag ... ok
[INFO] [stdout] test model::tests::test_invalid_model ... ok
[INFO] [stdout] test model::tests::test_model_dump ... ok
[INFO] [stdout] test model::tests::test_model_new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests crfs
[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" "8363026bd38267dee3aeb1b2be51b4cb0d81a0a1d9d52c63da15edb178a311fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8363026bd38267dee3aeb1b2be51b4cb0d81a0a1d9d52c63da15edb178a311fe", kill_on_drop: false }`
[INFO] [stdout] 8363026bd38267dee3aeb1b2be51b4cb0d81a0a1d9d52c63da15edb178a311fe