[INFO] fetching crate assert 0.7.4...
[INFO] testing assert-0.7.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate assert 0.7.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate assert 0.7.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assert 0.7.4
[INFO] finished tweaking crates.io crate assert 0.7.4
[INFO] tweaked toml for crates.io crate assert 0.7.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a28c1d69f7122ccbac737ad4da8e2baf284c8daa59b6a1a92c7b408d5ac81fff
[INFO] running `Command { std: "docker" "start" "-a" "a28c1d69f7122ccbac737ad4da8e2baf284c8daa59b6a1a92c7b408d5ac81fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a28c1d69f7122ccbac737ad4da8e2baf284c8daa59b6a1a92c7b408d5ac81fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a28c1d69f7122ccbac737ad4da8e2baf284c8daa59b6a1a92c7b408d5ac81fff", kill_on_drop: false }`
[INFO] [stdout] a28c1d69f7122ccbac737ad4da8e2baf284c8daa59b6a1a92c7b408d5ac81fff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1d6ac2f898d8d513175aa2c3d9bc52658b0935b10f94725ba0b9dc30a7883d5
[INFO] running `Command { std: "docker" "start" "-a" "d1d6ac2f898d8d513175aa2c3d9bc52658b0935b10f94725ba0b9dc30a7883d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert v0.7.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "d1d6ac2f898d8d513175aa2c3d9bc52658b0935b10f94725ba0b9dc30a7883d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1d6ac2f898d8d513175aa2c3d9bc52658b0935b10f94725ba0b9dc30a7883d5", kill_on_drop: false }`
[INFO] [stdout] d1d6ac2f898d8d513175aa2c3d9bc52658b0935b10f94725ba0b9dc30a7883d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 690b44836a3c7444b682f8937ac87902ac9e2291b84deeb033952498d35f9cae
[INFO] running `Command { std: "docker" "start" "-a" "690b44836a3c7444b682f8937ac87902ac9e2291b84deeb033952498d35f9cae", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert v0.7.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "690b44836a3c7444b682f8937ac87902ac9e2291b84deeb033952498d35f9cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "690b44836a3c7444b682f8937ac87902ac9e2291b84deeb033952498d35f9cae", kill_on_drop: false }`
[INFO] [stdout] 690b44836a3c7444b682f8937ac87902ac9e2291b84deeb033952498d35f9cae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66681e553a1d7e22ae4c1b54f99ff80cfec2d62d2b001c7352e79f364179c5f2
[INFO] running `Command { std: "docker" "start" "-a" "66681e553a1d7e22ae4c1b54f99ff80cfec2d62d2b001c7352e79f364179c5f2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/assert-078c300caacd59b5)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::close ... ok
[INFO] [stdout] test test::close_zero ... ok
[INFO] [stdout] test test::close_empty - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests assert
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "66681e553a1d7e22ae4c1b54f99ff80cfec2d62d2b001c7352e79f364179c5f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66681e553a1d7e22ae4c1b54f99ff80cfec2d62d2b001c7352e79f364179c5f2", kill_on_drop: false }`
[INFO] [stdout] 66681e553a1d7e22ae4c1b54f99ff80cfec2d62d2b001c7352e79f364179c5f2