[INFO] cloning repository https://github.com/tomaka/cargo-bug-repro-20200624
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomaka/cargo-bug-repro-20200624" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomaka%2Fcargo-bug-repro-20200624", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomaka%2Fcargo-bug-repro-20200624'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 855e00d78d32ef0763c67608329c83a98de1440e
[INFO] testing tomaka/cargo-bug-repro-20200624 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomaka%2Fcargo-bug-repro-20200624" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomaka/cargo-bug-repro-20200624 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomaka/cargo-bug-repro-20200624
[INFO] finished tweaking git repo https://github.com/tomaka/cargo-bug-repro-20200624
[INFO] tweaked toml for git repo https://github.com/tomaka/cargo-bug-repro-20200624 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/tomaka/cargo-bug-repro-20200624 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 466bf95e5c5eeefdd7b07489f0fc96a9e3af45704c0cddb69491e0e629805bcc
[INFO] running `Command { std: "docker" "start" "-a" "466bf95e5c5eeefdd7b07489f0fc96a9e3af45704c0cddb69491e0e629805bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "466bf95e5c5eeefdd7b07489f0fc96a9e3af45704c0cddb69491e0e629805bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "466bf95e5c5eeefdd7b07489f0fc96a9e3af45704c0cddb69491e0e629805bcc", kill_on_drop: false }`
[INFO] [stdout] 466bf95e5c5eeefdd7b07489f0fc96a9e3af45704c0cddb69491e0e629805bcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ac12db40b6288b6bf85effa86149c45391b69d2d6e6a1eb6f4ff433d98e75c3
[INFO] running `Command { std: "docker" "start" "-a" "2ac12db40b6288b6bf85effa86149c45391b69d2d6e6a1eb6f4ff433d98e75c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling a v0.1.0 (/opt/rustwide/workdir/a)
[INFO] [stderr]    Compiling b v0.1.0 (/opt/rustwide/workdir/b)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "2ac12db40b6288b6bf85effa86149c45391b69d2d6e6a1eb6f4ff433d98e75c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ac12db40b6288b6bf85effa86149c45391b69d2d6e6a1eb6f4ff433d98e75c3", kill_on_drop: false }`
[INFO] [stdout] 2ac12db40b6288b6bf85effa86149c45391b69d2d6e6a1eb6f4ff433d98e75c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04ef8ef2042c2c2f5d78b4703c3fc1a59d46f4f8d66907bd60c20a09dc562e2b
[INFO] running `Command { std: "docker" "start" "-a" "04ef8ef2042c2c2f5d78b4703c3fc1a59d46f4f8d66907bd60c20a09dc562e2b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling a v0.1.0 (/opt/rustwide/workdir/a)
[INFO] [stderr]    Compiling b v0.1.0 (/opt/rustwide/workdir/b)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "04ef8ef2042c2c2f5d78b4703c3fc1a59d46f4f8d66907bd60c20a09dc562e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ef8ef2042c2c2f5d78b4703c3fc1a59d46f4f8d66907bd60c20a09dc562e2b", kill_on_drop: false }`
[INFO] [stdout] 04ef8ef2042c2c2f5d78b4703c3fc1a59d46f4f8d66907bd60c20a09dc562e2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e312bc2e2b36411117aa797ad53826dd7c4fcd35963e03e7ea3abe871133ab2d
[INFO] running `Command { std: "docker" "start" "-a" "e312bc2e2b36411117aa797ad53826dd7c4fcd35963e03e7ea3abe871133ab2d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/a-43a905b7c3e767f8)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/b-0dff3003e0dd2869)
[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" "e312bc2e2b36411117aa797ad53826dd7c4fcd35963e03e7ea3abe871133ab2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e312bc2e2b36411117aa797ad53826dd7c4fcd35963e03e7ea3abe871133ab2d", kill_on_drop: false }`
[INFO] [stdout] e312bc2e2b36411117aa797ad53826dd7c4fcd35963e03e7ea3abe871133ab2d