[INFO] fetching crate extended_fizzbuzz 1.0.0...
[INFO] testing extended_fizzbuzz-1.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate extended_fizzbuzz 1.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate extended_fizzbuzz 1.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extended_fizzbuzz 1.0.0
[INFO] finished tweaking crates.io crate extended_fizzbuzz 1.0.0
[INFO] tweaked toml for crates.io crate extended_fizzbuzz 1.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate extended_fizzbuzz 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 783f314dd1e5e8a4186aea480f422ebed0fca5034b28accffcad954de04c25c3
[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" "783f314dd1e5e8a4186aea480f422ebed0fca5034b28accffcad954de04c25c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "783f314dd1e5e8a4186aea480f422ebed0fca5034b28accffcad954de04c25c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "783f314dd1e5e8a4186aea480f422ebed0fca5034b28accffcad954de04c25c3", kill_on_drop: false }`
[INFO] [stdout] 783f314dd1e5e8a4186aea480f422ebed0fca5034b28accffcad954de04c25c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64eb77b318737970e7ddd97cc51615fd4dd0c0ddd7345722bd1052f2d9be8d47
[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" "64eb77b318737970e7ddd97cc51615fd4dd0c0ddd7345722bd1052f2d9be8d47", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling extended_fizzbuzz v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.07s
[INFO] running `Command { std: "docker" "inspect" "64eb77b318737970e7ddd97cc51615fd4dd0c0ddd7345722bd1052f2d9be8d47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64eb77b318737970e7ddd97cc51615fd4dd0c0ddd7345722bd1052f2d9be8d47", kill_on_drop: false }`
[INFO] [stdout] 64eb77b318737970e7ddd97cc51615fd4dd0c0ddd7345722bd1052f2d9be8d47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 023a7d58d9a3225543b6aaa23ba4000c97af4bb6a984569971e51735c4665d0d
[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" "023a7d58d9a3225543b6aaa23ba4000c97af4bb6a984569971e51735c4665d0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling extended_fizzbuzz v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/matcher.rs:120:17
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 _ => Err("Wrong error kind".to_string()),
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` 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 6.44s
[INFO] running `Command { std: "docker" "inspect" "023a7d58d9a3225543b6aaa23ba4000c97af4bb6a984569971e51735c4665d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "023a7d58d9a3225543b6aaa23ba4000c97af4bb6a984569971e51735c4665d0d", kill_on_drop: false }`
[INFO] [stdout] 023a7d58d9a3225543b6aaa23ba4000c97af4bb6a984569971e51735c4665d0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 39cd7f5d93a8f34d43370994dea9bb2372b598696911aa9fc97cb8b02e3114b7
[INFO] running `Command { std: "docker" "start" "-a" "39cd7f5d93a8f34d43370994dea9bb2372b598696911aa9fc97cb8b02e3114b7", 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] [stdout] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stdout] running 8 tests
[INFO] [stderr]    --> src/matcher.rs:120:17
[INFO] [stdout] test matcher::tests::matches_one ... ok
[INFO] [stderr]     |
[INFO] [stdout] test matcher::tests::new_zero ... ok
[INFO] [stderr] 120 |                 _ => Err("Wrong error kind".to_string()),
[INFO] [stdout] test matcher::tests::matches_normal ... ok
[INFO] [stderr]     |                 ^
[INFO] [stdout] test matcher::tests::text_one ... ok
[INFO] [stderr]     |
[INFO] [stdout] test matcher::tests::new_normal ... ok
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] test matcher::tests::text_normal ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::line_normal ... ok
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] test tests::line_one ... ok
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/extended_fizzbuzz-32ff1c709ab04e55
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests extended_fizzbuzz
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/matcher.rs - matcher::Matcher::matches (line 45) ... ok
[INFO] [stdout] test src/matcher.rs - matcher::Matcher (line 8) ... ok
[INFO] [stdout] test src/lib.rs - fizzbuzz (line 70) ... ok
[INFO] [stdout] test src/lib.rs - line (line 102) ... ok
[INFO] [stdout] test src/matcher.rs - matcher::Matcher::text (line 64) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "39cd7f5d93a8f34d43370994dea9bb2372b598696911aa9fc97cb8b02e3114b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39cd7f5d93a8f34d43370994dea9bb2372b598696911aa9fc97cb8b02e3114b7", kill_on_drop: false }`
[INFO] [stdout] 39cd7f5d93a8f34d43370994dea9bb2372b598696911aa9fc97cb8b02e3114b7