[INFO] fetching crate synchronized-writer 1.1.10...
[INFO] testing synchronized-writer-1.1.10 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate synchronized-writer 1.1.10 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate synchronized-writer 1.1.10 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synchronized-writer 1.1.10
[INFO] finished tweaking crates.io crate synchronized-writer 1.1.10
[INFO] tweaked toml for crates.io crate synchronized-writer 1.1.10 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f5ed3d4702ab75d601624cf7a1a6d3ca8788edf2200e5fd54961c95f04c6820
[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" "6f5ed3d4702ab75d601624cf7a1a6d3ca8788edf2200e5fd54961c95f04c6820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f5ed3d4702ab75d601624cf7a1a6d3ca8788edf2200e5fd54961c95f04c6820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f5ed3d4702ab75d601624cf7a1a6d3ca8788edf2200e5fd54961c95f04c6820", kill_on_drop: false }`
[INFO] [stdout] 6f5ed3d4702ab75d601624cf7a1a6d3ca8788edf2200e5fd54961c95f04c6820
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 685233ef02e790f5fca30c07b07afa29d26d9bfcddef4f9d116a56f2146dab9a
[INFO] running `Command { std: "docker" "start" "-a" "685233ef02e790f5fca30c07b07afa29d26d9bfcddef4f9d116a56f2146dab9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling synchronized-writer v1.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "685233ef02e790f5fca30c07b07afa29d26d9bfcddef4f9d116a56f2146dab9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "685233ef02e790f5fca30c07b07afa29d26d9bfcddef4f9d116a56f2146dab9a", kill_on_drop: false }`
[INFO] [stdout] 685233ef02e790f5fca30c07b07afa29d26d9bfcddef4f9d116a56f2146dab9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--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] ffdada6eaeb9beed60c0dcf83b311196547de0f0e08f40d7f342d525c1827b49
[INFO] running `Command { std: "docker" "start" "-a" "ffdada6eaeb9beed60c0dcf83b311196547de0f0e08f40d7f342d525c1827b49", kill_on_drop: false }`
[INFO] [stderr]    Compiling synchronized-writer v1.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "ffdada6eaeb9beed60c0dcf83b311196547de0f0e08f40d7f342d525c1827b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffdada6eaeb9beed60c0dcf83b311196547de0f0e08f40d7f342d525c1827b49", kill_on_drop: false }`
[INFO] [stdout] ffdada6eaeb9beed60c0dcf83b311196547de0f0e08f40d7f342d525c1827b49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a628fef76e783c6a0094541ff2d319b89afcff1a468d546466e5855c1090d5e6
[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" "a628fef76e783c6a0094541ff2d319b89afcff1a468d546466e5855c1090d5e6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/synchronized_writer-00a16715333f4dba)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests synchronized-writer
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 40) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a628fef76e783c6a0094541ff2d319b89afcff1a468d546466e5855c1090d5e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a628fef76e783c6a0094541ff2d319b89afcff1a468d546466e5855c1090d5e6", kill_on_drop: false }`
[INFO] [stdout] a628fef76e783c6a0094541ff2d319b89afcff1a468d546466e5855c1090d5e6