[INFO] fetching crate immutable_string 0.1.1...
[INFO] testing immutable_string-0.1.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate immutable_string 0.1.1 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate immutable_string 0.1.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate immutable_string 0.1.1
[INFO] finished tweaking crates.io crate immutable_string 0.1.1
[INFO] tweaked toml for crates.io crate immutable_string 0.1.1 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52403fbf71c6343c3d1f44fadbdcd56cbe83da9c5054d43932973b82d0215d1f
[INFO] running `Command { std: "docker" "start" "-a" "52403fbf71c6343c3d1f44fadbdcd56cbe83da9c5054d43932973b82d0215d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52403fbf71c6343c3d1f44fadbdcd56cbe83da9c5054d43932973b82d0215d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52403fbf71c6343c3d1f44fadbdcd56cbe83da9c5054d43932973b82d0215d1f", kill_on_drop: false }`
[INFO] [stdout] 52403fbf71c6343c3d1f44fadbdcd56cbe83da9c5054d43932973b82d0215d1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce61a9f700ff034c35bcc4ce073d6f03795e51cd13967c84f2bbd9431c508742
[INFO] running `Command { std: "docker" "start" "-a" "ce61a9f700ff034c35bcc4ce073d6f03795e51cd13967c84f2bbd9431c508742", kill_on_drop: false }`
[INFO] [stderr]    Compiling weak-table v0.3.2
[INFO] [stderr]    Compiling immutable_string v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "ce61a9f700ff034c35bcc4ce073d6f03795e51cd13967c84f2bbd9431c508742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce61a9f700ff034c35bcc4ce073d6f03795e51cd13967c84f2bbd9431c508742", kill_on_drop: false }`
[INFO] [stdout] ce61a9f700ff034c35bcc4ce073d6f03795e51cd13967c84f2bbd9431c508742
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 861255640ace1ea22d4df38f46b4debfab151e3c38b303836fc14d9eaf15d9cb
[INFO] running `Command { std: "docker" "start" "-a" "861255640ace1ea22d4df38f46b4debfab151e3c38b303836fc14d9eaf15d9cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling immutable_string v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "861255640ace1ea22d4df38f46b4debfab151e3c38b303836fc14d9eaf15d9cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "861255640ace1ea22d4df38f46b4debfab151e3c38b303836fc14d9eaf15d9cb", kill_on_drop: false }`
[INFO] [stdout] 861255640ace1ea22d4df38f46b4debfab151e3c38b303836fc14d9eaf15d9cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 56eb21be0fff05a962d542d338bf10c6dcc115370a2e8def220bb1dc975fe17d
[INFO] running `Command { std: "docker" "start" "-a" "56eb21be0fff05a962d542d338bf10c6dcc115370a2e8def220bb1dc975fe17d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/immutable_string-ca501c4580edfdf2)
[INFO] [stdout] test tests::display ... ok
[INFO] [stdout] test tests::two_insertion_sharing ... ok
[INFO] [stderr]    Doc-tests immutable_string
[INFO] [stdout] test tests::iter_collect ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ImmutableString::use_count (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "56eb21be0fff05a962d542d338bf10c6dcc115370a2e8def220bb1dc975fe17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56eb21be0fff05a962d542d338bf10c6dcc115370a2e8def220bb1dc975fe17d", kill_on_drop: false }`
[INFO] [stdout] 56eb21be0fff05a962d542d338bf10c6dcc115370a2e8def220bb1dc975fe17d