[INFO] fetching crate kerr 0.1.4...
[INFO] testing kerr-0.1.4 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate kerr 0.1.4 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate kerr 0.1.4 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kerr 0.1.4
[INFO] finished tweaking crates.io crate kerr 0.1.4
[INFO] tweaked toml for crates.io crate kerr 0.1.4 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 790d219e0432590b74a1a75ad88769ba4c7e29b69b0f193c370a93c061b96cf2
[INFO] running `Command { std: "docker" "start" "-a" "790d219e0432590b74a1a75ad88769ba4c7e29b69b0f193c370a93c061b96cf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "790d219e0432590b74a1a75ad88769ba4c7e29b69b0f193c370a93c061b96cf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "790d219e0432590b74a1a75ad88769ba4c7e29b69b0f193c370a93c061b96cf2", kill_on_drop: false }`
[INFO] [stdout] 790d219e0432590b74a1a75ad88769ba4c7e29b69b0f193c370a93c061b96cf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd8d913bb30b435826b8c3473fcde0e4cae5860730b212affa87c4da85593ef
[INFO] running `Command { std: "docker" "start" "-a" "4cd8d913bb30b435826b8c3473fcde0e4cae5860730b212affa87c4da85593ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling kerr v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "4cd8d913bb30b435826b8c3473fcde0e4cae5860730b212affa87c4da85593ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd8d913bb30b435826b8c3473fcde0e4cae5860730b212affa87c4da85593ef", kill_on_drop: false }`
[INFO] [stdout] 4cd8d913bb30b435826b8c3473fcde0e4cae5860730b212affa87c4da85593ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35373551fd79c9fe4fdfaac37e2cc7c378c9896498fbaa781f901e752deb593f
[INFO] running `Command { std: "docker" "start" "-a" "35373551fd79c9fe4fdfaac37e2cc7c378c9896498fbaa781f901e752deb593f", kill_on_drop: false }`
[INFO] [stderr]    Compiling kerr v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "35373551fd79c9fe4fdfaac37e2cc7c378c9896498fbaa781f901e752deb593f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35373551fd79c9fe4fdfaac37e2cc7c378c9896498fbaa781f901e752deb593f", kill_on_drop: false }`
[INFO] [stdout] 35373551fd79c9fe4fdfaac37e2cc7c378c9896498fbaa781f901e752deb593f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7311141d2cc5aae0d16987dac33c55a7190b21104dd95b875e06b16f21384ed1
[INFO] running `Command { std: "docker" "start" "-a" "7311141d2cc5aae0d16987dac33c55a7190b21104dd95b875e06b16f21384ed1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kerr-a4476732786f623b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test llist::tests::aaa_llist ... 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]      Running tests/kerr.rs (/opt/rustwide/target/debug/deps/kerr-03a2129bc6913578)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test aaa_kerr ... 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 kerr
[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" "7311141d2cc5aae0d16987dac33c55a7190b21104dd95b875e06b16f21384ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7311141d2cc5aae0d16987dac33c55a7190b21104dd95b875e06b16f21384ed1", kill_on_drop: false }`
[INFO] [stdout] 7311141d2cc5aae0d16987dac33c55a7190b21104dd95b875e06b16f21384ed1