[INFO] cloning repository https://github.com/little-dude/learn-pin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/little-dude/learn-pin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flittle-dude%2Flearn-pin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flittle-dude%2Flearn-pin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ef85e6d66ab708fd3debe698ac0b44e3654d0c3
[INFO] building little-dude/learn-pin against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flittle-dude%2Flearn-pin" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/little-dude/learn-pin
[INFO] finished tweaking git repo https://github.com/little-dude/learn-pin
[INFO] tweaked toml for git repo https://github.com/little-dude/learn-pin written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/little-dude/learn-pin on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/little-dude/learn-pin 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 503856b4ed23ee115c5528e59c220150f9899abeb54a7a8219d65a00d47f7a91
[INFO] running `Command { std: "docker" "start" "-a" "503856b4ed23ee115c5528e59c220150f9899abeb54a7a8219d65a00d47f7a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "503856b4ed23ee115c5528e59c220150f9899abeb54a7a8219d65a00d47f7a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "503856b4ed23ee115c5528e59c220150f9899abeb54a7a8219d65a00d47f7a91", kill_on_drop: false }`
[INFO] [stdout] 503856b4ed23ee115c5528e59c220150f9899abeb54a7a8219d65a00d47f7a91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9591ae1a73556c108cdcd3a5f82f5be37cdf1cfb373164c792204d89c7aacf04
[INFO] running `Command { std: "docker" "start" "-a" "9591ae1a73556c108cdcd3a5f82f5be37cdf1cfb373164c792204d89c7aacf04", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.24
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling pin-project-lite v0.1.8
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling pin-project v0.4.24
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling tracing-tests v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.78s
[INFO] running `Command { std: "docker" "inspect" "9591ae1a73556c108cdcd3a5f82f5be37cdf1cfb373164c792204d89c7aacf04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9591ae1a73556c108cdcd3a5f82f5be37cdf1cfb373164c792204d89c7aacf04", kill_on_drop: false }`
[INFO] [stdout] 9591ae1a73556c108cdcd3a5f82f5be37cdf1cfb373164c792204d89c7aacf04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7b794dfaef5cf8a639cd8fd65862ad2c0a35c324d6ff4534bca3a6a4d726e1f
[INFO] running `Command { std: "docker" "start" "-a" "f7b794dfaef5cf8a639cd8fd65862ad2c0a35c324d6ff4534bca3a6a4d726e1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-tests v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "f7b794dfaef5cf8a639cd8fd65862ad2c0a35c324d6ff4534bca3a6a4d726e1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7b794dfaef5cf8a639cd8fd65862ad2c0a35c324d6ff4534bca3a6a4d726e1f", kill_on_drop: false }`
[INFO] [stdout] f7b794dfaef5cf8a639cd8fd65862ad2c0a35c324d6ff4534bca3a6a4d726e1f