[INFO] fetching crate guard 0.5.1...
[INFO] testing guard-0.5.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate guard 0.5.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate guard 0.5.1 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate guard 0.5.1
[INFO] finished tweaking crates.io crate guard 0.5.1
[INFO] tweaked toml for crates.io crate guard 0.5.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate guard 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 652b9fb6be8ec0e2fc11ca3a8ee4f4b4580b0120921776fa8dc68345adcc0779
[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" "652b9fb6be8ec0e2fc11ca3a8ee4f4b4580b0120921776fa8dc68345adcc0779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "652b9fb6be8ec0e2fc11ca3a8ee4f4b4580b0120921776fa8dc68345adcc0779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "652b9fb6be8ec0e2fc11ca3a8ee4f4b4580b0120921776fa8dc68345adcc0779", kill_on_drop: false }`
[INFO] [stdout] 652b9fb6be8ec0e2fc11ca3a8ee4f4b4580b0120921776fa8dc68345adcc0779
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 306748dd67b5e287276d103530ed5e59ef8bb2eb546b9aa79c07e57ef858b754
[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" "306748dd67b5e287276d103530ed5e59ef8bb2eb546b9aa79c07e57ef858b754", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling guard v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "306748dd67b5e287276d103530ed5e59ef8bb2eb546b9aa79c07e57ef858b754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "306748dd67b5e287276d103530ed5e59ef8bb2eb546b9aa79c07e57ef858b754", kill_on_drop: false }`
[INFO] [stdout] 306748dd67b5e287276d103530ed5e59ef8bb2eb546b9aa79c07e57ef858b754
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31db15b1bc67b1261d1c283b67dd582d7dbc382e7c3e4d25d9d86399562c38f9
[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" "31db15b1bc67b1261d1c283b67dd582d7dbc382e7c3e4d25d9d86399562c38f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling guard v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "31db15b1bc67b1261d1c283b67dd582d7dbc382e7c3e4d25d9d86399562c38f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31db15b1bc67b1261d1c283b67dd582d7dbc382e7c3e4d25d9d86399562c38f9", kill_on_drop: false }`
[INFO] [stdout] 31db15b1bc67b1261d1c283b67dd582d7dbc382e7c3e4d25d9d86399562c38f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c96b657875b715211908a8a10eb0041a8cde45de3e09ccb5d27db5a714a3d0e3
[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" "c96b657875b715211908a8a10eb0041a8cde45de3e09ccb5d27db5a714a3d0e3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guard-0fdf614a703e173d)
[INFO] [stdout] running 9 tests
[INFO] [stdout] test guard_unwrap::test::should_bind ... ok
[INFO] [stdout] test tests::various ... ok
[INFO] [stdout] test tests::new_syntax ... ok
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] test guard_unwrap::test::should_match ... ok
[INFO] [stderr]      Running tests/guard_unwrap.rs (/opt/rustwide/target/debug/deps/guard_unwrap-d15e8d5b4857d317)
[INFO] [stdout] test guard_unwrap::test::panic_message_should_include_pattern - should panic ... ok
[INFO] [stdout] test guard_unwrap::test::should_panic - should panic ... ok
[INFO] [stdout] test guard_unwrap::test::should_have_nice_panic_message - should panic ... ok
[INFO] [stdout] test guard_unwrap::test::panic_message_should_include_matched_expression - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test should_be_usable_from_different_crate ... 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]    Doc-tests guard
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/guard_unwrap.rs - guard_unwrap (line 16) ... ok
[INFO] [stdout] test src/guard_unwrap.rs - guard_unwrap (line 24) ... ok
[INFO] [stdout] test src/lib.rs - (line 29) ... ok
[INFO] [stdout] test src/lib.rs - (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c96b657875b715211908a8a10eb0041a8cde45de3e09ccb5d27db5a714a3d0e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c96b657875b715211908a8a10eb0041a8cde45de3e09ccb5d27db5a714a3d0e3", kill_on_drop: false }`
[INFO] [stdout] c96b657875b715211908a8a10eb0041a8cde45de3e09ccb5d27db5a714a3d0e3