[INFO] fetching crate writeable 0.3.0...
[INFO] testing writeable-0.3.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate writeable 0.3.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate writeable 0.3.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate writeable 0.3.0
[INFO] finished tweaking crates.io crate writeable 0.3.0
[INFO] tweaked toml for crates.io crate writeable 0.3.0 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate writeable 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded icu_benchmark_macros v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79503307e6a289eec6c491abd2dfd63ac527e2cf323f20eb31eeb8a477071375
[INFO] running `Command { std: "docker" "start" "-a" "79503307e6a289eec6c491abd2dfd63ac527e2cf323f20eb31eeb8a477071375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79503307e6a289eec6c491abd2dfd63ac527e2cf323f20eb31eeb8a477071375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79503307e6a289eec6c491abd2dfd63ac527e2cf323f20eb31eeb8a477071375", kill_on_drop: false }`
[INFO] [stdout] 79503307e6a289eec6c491abd2dfd63ac527e2cf323f20eb31eeb8a477071375
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0dcf4bc27dbb2bd07be4f1824775a706ebfec2b44681ff0fa74fce471b90a03
[INFO] running `Command { std: "docker" "start" "-a" "c0dcf4bc27dbb2bd07be4f1824775a706ebfec2b44681ff0fa74fce471b90a03", kill_on_drop: false }`
[INFO] [stderr]    Compiling writeable v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "c0dcf4bc27dbb2bd07be4f1824775a706ebfec2b44681ff0fa74fce471b90a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0dcf4bc27dbb2bd07be4f1824775a706ebfec2b44681ff0fa74fce471b90a03", kill_on_drop: false }`
[INFO] [stdout] c0dcf4bc27dbb2bd07be4f1824775a706ebfec2b44681ff0fa74fce471b90a03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c09798d7f41afc8e85e703418185076e067e701336659e574a3965ab81b9180
[INFO] running `Command { std: "docker" "start" "-a" "9c09798d7f41afc8e85e703418185076e067e701336659e574a3965ab81b9180", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling icu_benchmark_macros v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling writeable v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.34s
[INFO] running `Command { std: "docker" "inspect" "9c09798d7f41afc8e85e703418185076e067e701336659e574a3965ab81b9180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c09798d7f41afc8e85e703418185076e067e701336659e574a3965ab81b9180", kill_on_drop: false }`
[INFO] [stdout] 9c09798d7f41afc8e85e703418185076e067e701336659e574a3965ab81b9180
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7edb6624c48a296c6d2c89a41799011458d6fdc360af84629da5eb3fa647371f
[INFO] running `Command { std: "docker" "start" "-a" "7edb6624c48a296c6d2c89a41799011458d6fdc360af84629da5eb3fa647371f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/writeable-d1a51a3f2cd0fd80)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test impls::assert_log10_approximation ... ok
[INFO] [stdout] test impls::test_string_impls ... ok
[INFO] [stdout] test ops::tests::test_add ... ok
[INFO] [stdout] test ops::tests::test_bitor ... ok
[INFO] [stdout] test ops::tests::test_mul ... ok
[INFO] [stdout] test ops::tests::test_sum ... ok
[INFO] [stdout] test impls::test_u16 ... ok
[INFO] [stdout] test impls::test_u32 ... ok
[INFO] [stdout] test impls::test_u128 ... ok
[INFO] [stdout] test impls::test_u8 ... ok
[INFO] [stdout] test impls::test_u64 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/writeable.rs (/opt/rustwide/target/debug/deps/writeable-4a3bd9781985bf2b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests writeable
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - LengthHint::capacity (line 107) ... ok
[INFO] [stdout] test src/impls.rs - impls::str::writeable_to_string (line 141) ... ok
[INFO] [stdout] test src/ops.rs - ops::LengthHint::bitor (line 77) ... ok
[INFO] [stdout] test src/lib.rs - Writeable::writeable_to_string (line 222) ... ok
[INFO] [stdout] test src/lib.rs - Writeable::writeable_to_string (line 202) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/lib.rs - assert_writeable_eq (line 246) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7edb6624c48a296c6d2c89a41799011458d6fdc360af84629da5eb3fa647371f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7edb6624c48a296c6d2c89a41799011458d6fdc360af84629da5eb3fa647371f", kill_on_drop: false }`
[INFO] [stdout] 7edb6624c48a296c6d2c89a41799011458d6fdc360af84629da5eb3fa647371f