[INFO] cloning repository https://github.com/shadowkun/pyolearn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shadowkun/pyolearn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshadowkun%2Fpyolearn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshadowkun%2Fpyolearn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac835607906fa7b95d0bfeff1d1e8d152622eeb6
[INFO] checking shadowkun/pyolearn against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshadowkun%2Fpyolearn" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shadowkun/pyolearn on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/shadowkun/pyolearn
[INFO] finished tweaking git repo https://github.com/shadowkun/pyolearn
[INFO] tweaked toml for git repo https://github.com/shadowkun/pyolearn written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/shadowkun/pyolearn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--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 unindent v0.1.5
[INFO] [stderr]   Downloaded indoc-impl v0.3.4
[INFO] [stderr]   Downloaded indoc v0.3.4
[INFO] [stderr]   Downloaded ghost v0.1.1
[INFO] [stderr]   Downloaded version_check v0.9.1
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.11
[INFO] [stderr]   Downloaded inventory-impl v0.1.4
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded num-traits v0.2.8
[INFO] [stderr]   Downloaded spin v0.5.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.8.2
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded pyo3 v0.8.2
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded pyo3cls v0.8.2
[INFO] [stderr]   Downloaded inventory v0.1.4
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded paste-impl v0.1.6
[INFO] [stderr]   Downloaded ctor v0.1.12
[INFO] [stderr]   Downloaded paste v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0b119b63f6ed5b0fd23e21a11ee494409a10152e934c0ba4a9b5d0a972ff830
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e0b119b63f6ed5b0fd23e21a11ee494409a10152e934c0ba4a9b5d0a972ff830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0b119b63f6ed5b0fd23e21a11ee494409a10152e934c0ba4a9b5d0a972ff830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0b119b63f6ed5b0fd23e21a11ee494409a10152e934c0ba4a9b5d0a972ff830", kill_on_drop: false }`
[INFO] [stdout] e0b119b63f6ed5b0fd23e21a11ee494409a10152e934c0ba4a9b5d0a972ff830
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4fe9092861a232cf8ccb091ccf84557e992ad7a723140cd27b9fb3bae8d71bd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c4fe9092861a232cf8ccb091ccf84557e992ad7a723140cd27b9fb3bae8d71bd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.2
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling inventory-impl v0.1.4
[INFO] [stderr]    Compiling paste-impl v0.1.6
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking inventory v0.1.4
[INFO] [stderr]     Checking paste v0.1.6
[INFO] [stderr]    Compiling pyo3cls v0.8.2
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling pyo3 v0.8.2
[INFO] [stderr]     Checking test_rustc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.63s
[INFO] running `Command { std: "docker" "inspect" "c4fe9092861a232cf8ccb091ccf84557e992ad7a723140cd27b9fb3bae8d71bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4fe9092861a232cf8ccb091ccf84557e992ad7a723140cd27b9fb3bae8d71bd", kill_on_drop: false }`
[INFO] [stdout] c4fe9092861a232cf8ccb091ccf84557e992ad7a723140cd27b9fb3bae8d71bd