[INFO] fetching crate fslock 0.1.7...
[INFO] testing fslock-0.1.7 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate fslock 0.1.7 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate fslock 0.1.7 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fslock 0.1.7
[INFO] finished tweaking crates.io crate fslock 0.1.7
[INFO] tweaked toml for crates.io crate fslock 0.1.7 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d09b378486c2265e5c5afda018f93689c3c0c656bdec8b0964e4f57161870aa
[INFO] running `Command { std: "docker" "start" "-a" "5d09b378486c2265e5c5afda018f93689c3c0c656bdec8b0964e4f57161870aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d09b378486c2265e5c5afda018f93689c3c0c656bdec8b0964e4f57161870aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d09b378486c2265e5c5afda018f93689c3c0c656bdec8b0964e4f57161870aa", kill_on_drop: false }`
[INFO] [stdout] 5d09b378486c2265e5c5afda018f93689c3c0c656bdec8b0964e4f57161870aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ebbe1ef55679293ba2147d39d3c56bbada322d66383977cd6d3a5e78046ffbd
[INFO] running `Command { std: "docker" "start" "-a" "7ebbe1ef55679293ba2147d39d3c56bbada322d66383977cd6d3a5e78046ffbd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling fslock v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "7ebbe1ef55679293ba2147d39d3c56bbada322d66383977cd6d3a5e78046ffbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ebbe1ef55679293ba2147d39d3c56bbada322d66383977cd6d3a5e78046ffbd", kill_on_drop: false }`
[INFO] [stdout] 7ebbe1ef55679293ba2147d39d3c56bbada322d66383977cd6d3a5e78046ffbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 167e061a127a3ce01553a17a5393749e465438058b4589c6b4346b7930b7d934
[INFO] running `Command { std: "docker" "start" "-a" "167e061a127a3ce01553a17a5393749e465438058b4589c6b4346b7930b7d934", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fslock v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "167e061a127a3ce01553a17a5393749e465438058b4589c6b4346b7930b7d934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "167e061a127a3ce01553a17a5393749e465438058b4589c6b4346b7930b7d934", kill_on_drop: false }`
[INFO] [stdout] 167e061a127a3ce01553a17a5393749e465438058b4589c6b4346b7930b7d934
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7a2fce827e511d3d5db862b66490f056a03e1ffab9472baa55d30d73b982394f
[INFO] running `Command { std: "docker" "start" "-a" "7a2fce827e511d3d5db862b66490f056a03e1ffab9472baa55d30d73b982394f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fslock-d389855c96113439)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fslock
[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] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - LockFile::open (line 385) ... FAILED
[INFO] [stdout] test src/lib.rs - LockFile (line 260) ... FAILED
[INFO] [stdout] test src/lib.rs - LockFile::unlock (line 569) ... FAILED
[INFO] [stdout] test src/lib.rs - LockFile::lock (line 433) ... FAILED
[INFO] [stdout] test src/lib.rs - LockFile::open (line 397) ... ok
[INFO] [stdout] test src/lib.rs - LockFile::lock (line 451) ... ok
[INFO] [stdout] test src/lib.rs - LockFile::try_lock (line 486) ... FAILED
[INFO] [stdout] test src/lib.rs - LockFile::try_lock (line 505) ... ok
[INFO] [stdout] test src/lib.rs - LockFile::unlock (line 587) ... ok
[INFO] [stdout] test src/lib.rs - LockFile::owns_lock (line 536) ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] test src/lib.rs - (line 12) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LockFile::open (line 385) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LockFile (line 260) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LockFile::unlock (line 569) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LockFile::lock (line 433) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LockFile::try_lock (line 486) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LockFile::owns_lock (line 536) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 12) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 12)
[INFO] [stdout]     src/lib.rs - LockFile (line 260)
[INFO] [stdout]     src/lib.rs - LockFile::lock (line 433)
[INFO] [stdout]     src/lib.rs - LockFile::open (line 385)
[INFO] [stdout]     src/lib.rs - LockFile::owns_lock (line 536)
[INFO] [stdout]     src/lib.rs - LockFile::try_lock (line 486)
[INFO] [stdout]     src/lib.rs - LockFile::unlock (line 569)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 7 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7a2fce827e511d3d5db862b66490f056a03e1ffab9472baa55d30d73b982394f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a2fce827e511d3d5db862b66490f056a03e1ffab9472baa55d30d73b982394f", kill_on_drop: false }`
[INFO] [stdout] 7a2fce827e511d3d5db862b66490f056a03e1ffab9472baa55d30d73b982394f