[INFO] fetching crate iob 0.0.1...
[INFO] testing iob-0.0.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate iob 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate iob 0.0.1
[INFO] finished tweaking crates.io crate iob 0.0.1
[INFO] tweaked toml for crates.io crate iob 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate iob 0.0.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate iob 0.0.1 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6f7805a0b1e06fbfe0083787563a0e9c9ab790a7a9e190c744df39d083da738
[INFO] running `Command { std: "docker" "start" "-a" "b6f7805a0b1e06fbfe0083787563a0e9c9ab790a7a9e190c744df39d083da738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6f7805a0b1e06fbfe0083787563a0e9c9ab790a7a9e190c744df39d083da738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6f7805a0b1e06fbfe0083787563a0e9c9ab790a7a9e190c744df39d083da738", kill_on_drop: false }`
[INFO] [stdout] b6f7805a0b1e06fbfe0083787563a0e9c9ab790a7a9e190c744df39d083da738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef8a06b34a3c424dced42de8de0bf932bdffe3e9fc5839d2ea968fcf1ea44e10
[INFO] running `Command { std: "docker" "start" "-a" "ef8a06b34a3c424dced42de8de0bf932bdffe3e9fc5839d2ea968fcf1ea44e10", kill_on_drop: false }`
[INFO] [stderr]    Compiling iob v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "ef8a06b34a3c424dced42de8de0bf932bdffe3e9fc5839d2ea968fcf1ea44e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef8a06b34a3c424dced42de8de0bf932bdffe3e9fc5839d2ea968fcf1ea44e10", kill_on_drop: false }`
[INFO] [stdout] ef8a06b34a3c424dced42de8de0bf932bdffe3e9fc5839d2ea968fcf1ea44e10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 774bd3546637cf67a51b4649992cbd4b9b7ae30b8666ead7ba1049469a4a6cc6
[INFO] running `Command { std: "docker" "start" "-a" "774bd3546637cf67a51b4649992cbd4b9b7ae30b8666ead7ba1049469a4a6cc6", kill_on_drop: false }`
[INFO] [stderr]    Compiling iob v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "774bd3546637cf67a51b4649992cbd4b9b7ae30b8666ead7ba1049469a4a6cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "774bd3546637cf67a51b4649992cbd4b9b7ae30b8666ead7ba1049469a4a6cc6", kill_on_drop: false }`
[INFO] [stdout] 774bd3546637cf67a51b4649992cbd4b9b7ae30b8666ead7ba1049469a4a6cc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 689c97b6a2f3980d75fcb8d3f71a5191d45685ef3a8a5f2312d5b1d543a0c0f3
[INFO] running `Command { std: "docker" "start" "-a" "689c97b6a2f3980d75fcb8d3f71a5191d45685ef3a8a5f2312d5b1d543a0c0f3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/iob-39906c96cc57e81b)
[INFO] [stderr]    Doc-tests iob
[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] [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" "689c97b6a2f3980d75fcb8d3f71a5191d45685ef3a8a5f2312d5b1d543a0c0f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "689c97b6a2f3980d75fcb8d3f71a5191d45685ef3a8a5f2312d5b1d543a0c0f3", kill_on_drop: false }`
[INFO] [stdout] 689c97b6a2f3980d75fcb8d3f71a5191d45685ef3a8a5f2312d5b1d543a0c0f3