[INFO] cloning repository https://github.com/hobbsbros/learntk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hobbsbros/learntk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobbsbros%2Flearntk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobbsbros%2Flearntk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2382dbde78232994dccfc2f7f98ab4a3340125a
[INFO] checking hobbsbros/learntk against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobbsbros%2Flearntk" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hobbsbros/learntk on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hobbsbros/learntk
[INFO] finished tweaking git repo https://github.com/hobbsbros/learntk
[INFO] tweaked toml for git repo https://github.com/hobbsbros/learntk written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hobbsbros/learntk 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]     Updating learntk v0.2.1 (/workspace/builds/worker-1-tc1/source) -> v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa9709f1c68339d79a81baf1d886b527e4fa13006c556f5401f258d74ff93165
[INFO] running `Command { std: "docker" "start" "-a" "aa9709f1c68339d79a81baf1d886b527e4fa13006c556f5401f258d74ff93165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa9709f1c68339d79a81baf1d886b527e4fa13006c556f5401f258d74ff93165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa9709f1c68339d79a81baf1d886b527e4fa13006c556f5401f258d74ff93165", kill_on_drop: false }`
[INFO] [stdout] aa9709f1c68339d79a81baf1d886b527e4fa13006c556f5401f258d74ff93165
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7e130ce1f4c97dd9809ece2ea073a56b673a8c85a829322f66bf2384a01deb1
[INFO] running `Command { std: "docker" "start" "-a" "c7e130ce1f4c97dd9809ece2ea073a56b673a8c85a829322f66bf2384a01deb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling portable-atomic v0.3.19
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking console v0.15.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking indicatif v0.17.3
[INFO] [stderr]     Checking learntk v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "c7e130ce1f4c97dd9809ece2ea073a56b673a8c85a829322f66bf2384a01deb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7e130ce1f4c97dd9809ece2ea073a56b673a8c85a829322f66bf2384a01deb1", kill_on_drop: false }`
[INFO] [stdout] c7e130ce1f4c97dd9809ece2ea073a56b673a8c85a829322f66bf2384a01deb1
[INFO] checking hobbsbros/learntk against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobbsbros%2Flearntk" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hobbsbros/learntk on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hobbsbros/learntk
[INFO] finished tweaking git repo https://github.com/hobbsbros/learntk
[INFO] tweaked toml for git repo https://github.com/hobbsbros/learntk written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hobbsbros/learntk 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]     Updating learntk v0.2.1 (/workspace/builds/worker-1-tc2/source) -> v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2cf649334b0eb68a10ed43d67c185ef2439b28af3fce593ef0a9025fe4a81bb
[INFO] running `Command { std: "docker" "start" "-a" "d2cf649334b0eb68a10ed43d67c185ef2439b28af3fce593ef0a9025fe4a81bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2cf649334b0eb68a10ed43d67c185ef2439b28af3fce593ef0a9025fe4a81bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2cf649334b0eb68a10ed43d67c185ef2439b28af3fce593ef0a9025fe4a81bb", kill_on_drop: false }`
[INFO] [stdout] d2cf649334b0eb68a10ed43d67c185ef2439b28af3fce593ef0a9025fe4a81bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04423e8c6c64ecedbe61d1d6e3f27404de369bde3be8826c3adb6c93d7a03428
[INFO] running `Command { std: "docker" "start" "-a" "04423e8c6c64ecedbe61d1d6e3f27404de369bde3be8826c3adb6c93d7a03428", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling portable-atomic v0.3.19
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking console v0.15.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking indicatif v0.17.3
[INFO] [stderr]     Checking learntk v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `Command { std: "docker" "inspect" "04423e8c6c64ecedbe61d1d6e3f27404de369bde3be8826c3adb6c93d7a03428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04423e8c6c64ecedbe61d1d6e3f27404de369bde3be8826c3adb6c93d7a03428", kill_on_drop: false }`
[INFO] [stdout] 04423e8c6c64ecedbe61d1d6e3f27404de369bde3be8826c3adb6c93d7a03428