[INFO] fetching crate ribbons 0.1.3...
[INFO] testing ribbons-0.1.3 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate ribbons 0.1.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ribbons 0.1.3
[INFO] finished tweaking crates.io crate ribbons 0.1.3
[INFO] tweaked toml for crates.io crate ribbons 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ribbons 0.1.3 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ribbons 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0bef72a03c43ce9752b12ca557dad72dbc87cc39977be1ad07cad40342473ba
[INFO] running `Command { std: "docker" "start" "-a" "b0bef72a03c43ce9752b12ca557dad72dbc87cc39977be1ad07cad40342473ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0bef72a03c43ce9752b12ca557dad72dbc87cc39977be1ad07cad40342473ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0bef72a03c43ce9752b12ca557dad72dbc87cc39977be1ad07cad40342473ba", kill_on_drop: false }`
[INFO] [stdout] b0bef72a03c43ce9752b12ca557dad72dbc87cc39977be1ad07cad40342473ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59638f6cb8b702cb8abbd9282f6bae7bc6717439a45a2a45d021b6033492b1f6
[INFO] running `Command { std: "docker" "start" "-a" "59638f6cb8b702cb8abbd9282f6bae7bc6717439a45a2a45d021b6033492b1f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling ribbons v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "59638f6cb8b702cb8abbd9282f6bae7bc6717439a45a2a45d021b6033492b1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59638f6cb8b702cb8abbd9282f6bae7bc6717439a45a2a45d021b6033492b1f6", kill_on_drop: false }`
[INFO] [stdout] 59638f6cb8b702cb8abbd9282f6bae7bc6717439a45a2a45d021b6033492b1f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 508611e69c8a13950dac0a3e6bb248b611f74b3b947c1c513885b4003a904532
[INFO] running `Command { std: "docker" "start" "-a" "508611e69c8a13950dac0a3e6bb248b611f74b3b947c1c513885b4003a904532", kill_on_drop: false }`
[INFO] [stderr]    Compiling ribbons v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "508611e69c8a13950dac0a3e6bb248b611f74b3b947c1c513885b4003a904532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "508611e69c8a13950dac0a3e6bb248b611f74b3b947c1c513885b4003a904532", kill_on_drop: false }`
[INFO] [stdout] 508611e69c8a13950dac0a3e6bb248b611f74b3b947c1c513885b4003a904532
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b5277c4d0ea31f7e2bca6a24a0b0c6c42eaf0c38a061cef85b2314272cae89f
[INFO] running `Command { std: "docker" "start" "-a" "5b5277c4d0ea31f7e2bca6a24a0b0c6c42eaf0c38a061cef85b2314272cae89f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ribbons-13d4f5477ce3fc64)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::unwrap_some ... ok
[INFO] [stdout] test tests::unwrap_ok ... ok
[INFO] [stdout] test tests::unwrap_err - should panic ... ok
[INFO] [stdout] test tests::unwrap_none - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ribbons
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - unwrap_fmt (line 28) ... ok
[INFO] [stdout] test src/lib.rs - unwrap_fmt (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5b5277c4d0ea31f7e2bca6a24a0b0c6c42eaf0c38a061cef85b2314272cae89f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5277c4d0ea31f7e2bca6a24a0b0c6c42eaf0c38a061cef85b2314272cae89f", kill_on_drop: false }`
[INFO] [stdout] 5b5277c4d0ea31f7e2bca6a24a0b0c6c42eaf0c38a061cef85b2314272cae89f