[INFO] fetching crate read_exact 0.0.1...
[INFO] testing read_exact-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate read_exact 0.0.1 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate read_exact 0.0.1 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 read_exact 0.0.1
[INFO] finished tweaking crates.io crate read_exact 0.0.1
[INFO] tweaked toml for crates.io crate read_exact 0.0.1 written to /workspace/builds/worker-81/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] [stderr]     Blocking waiting for file lock on package cache
[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-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 076e1314f909a0ef68205f7c00e236df0dbc316ecde955a8ace0785d1c169a65
[INFO] running `Command { std: "docker" "start" "-a" "076e1314f909a0ef68205f7c00e236df0dbc316ecde955a8ace0785d1c169a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "076e1314f909a0ef68205f7c00e236df0dbc316ecde955a8ace0785d1c169a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "076e1314f909a0ef68205f7c00e236df0dbc316ecde955a8ace0785d1c169a65", kill_on_drop: false }`
[INFO] [stdout] 076e1314f909a0ef68205f7c00e236df0dbc316ecde955a8ace0785d1c169a65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 93ac48ffc0e28e6234479afcdb3473d0b1a492d8c08b33b7fc15130499a7c872
[INFO] running `Command { std: "docker" "start" "-a" "93ac48ffc0e28e6234479afcdb3473d0b1a492d8c08b33b7fc15130499a7c872", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_exact v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "93ac48ffc0e28e6234479afcdb3473d0b1a492d8c08b33b7fc15130499a7c872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ac48ffc0e28e6234479afcdb3473d0b1a492d8c08b33b7fc15130499a7c872", kill_on_drop: false }`
[INFO] [stdout] 93ac48ffc0e28e6234479afcdb3473d0b1a492d8c08b33b7fc15130499a7c872
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 60cebd0601c093c18255f6975f772acf871166a87218b99fe39d5d77827e45a1
[INFO] running `Command { std: "docker" "start" "-a" "60cebd0601c093c18255f6975f772acf871166a87218b99fe39d5d77827e45a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling read_exact v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "60cebd0601c093c18255f6975f772acf871166a87218b99fe39d5d77827e45a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60cebd0601c093c18255f6975f772acf871166a87218b99fe39d5d77827e45a1", kill_on_drop: false }`
[INFO] [stdout] 60cebd0601c093c18255f6975f772acf871166a87218b99fe39d5d77827e45a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] a40c46ad972914c946238f9bbe989f504dafa11cd503b5d0edb1f807cb0d558c
[INFO] running `Command { std: "docker" "start" "-a" "a40c46ad972914c946238f9bbe989f504dafa11cd503b5d0edb1f807cb0d558c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/read_exact-c9c0f226278ea8d7)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests read_exact
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::eof ... ok
[INFO] [stdout] test tests::ok ... ok
[INFO] [stdout] test tests::unexpected_eof ... 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 - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a40c46ad972914c946238f9bbe989f504dafa11cd503b5d0edb1f807cb0d558c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40c46ad972914c946238f9bbe989f504dafa11cd503b5d0edb1f807cb0d558c", kill_on_drop: false }`
[INFO] [stdout] a40c46ad972914c946238f9bbe989f504dafa11cd503b5d0edb1f807cb0d558c