[INFO] fetching crate tetcore-io 0.0.0...
[INFO] testing tetcore-io-0.0.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate tetcore-io 0.0.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate tetcore-io 0.0.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tetcore-io 0.0.0
[INFO] finished tweaking crates.io crate tetcore-io 0.0.0
[INFO] tweaked toml for crates.io crate tetcore-io 0.0.0 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a40aeefe9e487aa2ae659a7cbda7dd4bb2fdfe34f51671c57e4970c63fb6a67f
[INFO] running `Command { std: "docker" "start" "-a" "a40aeefe9e487aa2ae659a7cbda7dd4bb2fdfe34f51671c57e4970c63fb6a67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a40aeefe9e487aa2ae659a7cbda7dd4bb2fdfe34f51671c57e4970c63fb6a67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40aeefe9e487aa2ae659a7cbda7dd4bb2fdfe34f51671c57e4970c63fb6a67f", kill_on_drop: false }`
[INFO] [stdout] a40aeefe9e487aa2ae659a7cbda7dd4bb2fdfe34f51671c57e4970c63fb6a67f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 660ffb004c92a74137447c2f7b9ca2088a6a940c2485f68e5c4c49e3ba1fb289
[INFO] running `Command { std: "docker" "start" "-a" "660ffb004c92a74137447c2f7b9ca2088a6a940c2485f68e5c4c49e3ba1fb289", kill_on_drop: false }`
[INFO] [stderr]    Compiling tetcore-io v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "660ffb004c92a74137447c2f7b9ca2088a6a940c2485f68e5c4c49e3ba1fb289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "660ffb004c92a74137447c2f7b9ca2088a6a940c2485f68e5c4c49e3ba1fb289", kill_on_drop: false }`
[INFO] [stdout] 660ffb004c92a74137447c2f7b9ca2088a6a940c2485f68e5c4c49e3ba1fb289
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83d3f2ddc013576e154d4833c5438923db2b39fc3609a47b1b313f538281a5a8
[INFO] running `Command { std: "docker" "start" "-a" "83d3f2ddc013576e154d4833c5438923db2b39fc3609a47b1b313f538281a5a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling tetcore-io v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "83d3f2ddc013576e154d4833c5438923db2b39fc3609a47b1b313f538281a5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d3f2ddc013576e154d4833c5438923db2b39fc3609a47b1b313f538281a5a8", kill_on_drop: false }`
[INFO] [stdout] 83d3f2ddc013576e154d4833c5438923db2b39fc3609a47b1b313f538281a5a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4ccd45d16dd5ca1231c63517992d92439593a410f358079941f20966d7922e8f
[INFO] running `Command { std: "docker" "start" "-a" "4ccd45d16dd5ca1231c63517992d92439593a410f358079941f20966d7922e8f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tetcore_io-31e80b00f9961670)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tetcore-io
[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" "4ccd45d16dd5ca1231c63517992d92439593a410f358079941f20966d7922e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ccd45d16dd5ca1231c63517992d92439593a410f358079941f20966d7922e8f", kill_on_drop: false }`
[INFO] [stdout] 4ccd45d16dd5ca1231c63517992d92439593a410f358079941f20966d7922e8f