[INFO] cloning repository https://github.com/20yuteo/mini-container
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/20yuteo/mini-container" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F20yuteo%2Fmini-container", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F20yuteo%2Fmini-container'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39693166c26b1e2ddeb83bfbb1cd37d8c3739fa8
[INFO] checking 20yuteo/mini-container against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F20yuteo%2Fmini-container" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/20yuteo/mini-container on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/20yuteo/mini-container
[INFO] finished tweaking git repo https://github.com/20yuteo/mini-container
[INFO] tweaked toml for git repo https://github.com/20yuteo/mini-container written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/20yuteo/mini-container 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time-macros v0.2.9
[INFO] [stderr]   Downloaded num_threads v0.1.6
[INFO] [stderr]   Downloaded time v0.3.22
[INFO] [stderr]   Downloaded serde v1.0.166
[INFO] [stderr]   Downloaded syn v2.0.23
[INFO] [stderr]   Downloaded simplelog v0.12.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.41
[INFO] [stderr]   Downloaded thiserror v1.0.41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a2d7304ea278af796a9acc0f4238afae019ec4470802c15156a1f6ffd03389b
[INFO] running `Command { std: "docker" "start" "-a" "0a2d7304ea278af796a9acc0f4238afae019ec4470802c15156a1f6ffd03389b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a2d7304ea278af796a9acc0f4238afae019ec4470802c15156a1f6ffd03389b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a2d7304ea278af796a9acc0f4238afae019ec4470802c15156a1f6ffd03389b", kill_on_drop: false }`
[INFO] [stdout] 0a2d7304ea278af796a9acc0f4238afae019ec4470802c15156a1f6ffd03389b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cbc57a3ff03fc49c394f20ac06f7dd4d8a71e9feefcc7dcef027d3b35c86382
[INFO] running `Command { std: "docker" "start" "-a" "9cbc57a3ff03fc49c394f20ac06f7dd4d8a71e9feefcc7dcef027d3b35c86382", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling time-macros v0.2.9
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling thiserror v1.0.41
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking time v0.3.22
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking simplelog v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.41
[INFO] [stderr]     Checking tokio v1.29.1
[INFO] [stderr]     Checking mini-container v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.97s
[INFO] running `Command { std: "docker" "inspect" "9cbc57a3ff03fc49c394f20ac06f7dd4d8a71e9feefcc7dcef027d3b35c86382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cbc57a3ff03fc49c394f20ac06f7dd4d8a71e9feefcc7dcef027d3b35c86382", kill_on_drop: false }`
[INFO] [stdout] 9cbc57a3ff03fc49c394f20ac06f7dd4d8a71e9feefcc7dcef027d3b35c86382
[INFO] checking 20yuteo/mini-container against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F20yuteo%2Fmini-container" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/20yuteo/mini-container on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/20yuteo/mini-container
[INFO] finished tweaking git repo https://github.com/20yuteo/mini-container
[INFO] tweaked toml for git repo https://github.com/20yuteo/mini-container written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/20yuteo/mini-container 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4aa0f1ca36b838d0f79f8fd94290924828a497491fbd4d3d55a4f16d7de4be0
[INFO] running `Command { std: "docker" "start" "-a" "c4aa0f1ca36b838d0f79f8fd94290924828a497491fbd4d3d55a4f16d7de4be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4aa0f1ca36b838d0f79f8fd94290924828a497491fbd4d3d55a4f16d7de4be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4aa0f1ca36b838d0f79f8fd94290924828a497491fbd4d3d55a4f16d7de4be0", kill_on_drop: false }`
[INFO] [stdout] c4aa0f1ca36b838d0f79f8fd94290924828a497491fbd4d3d55a4f16d7de4be0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbb5c83768dff4bfd3da2d3a1997cd0db45a2c7d3743e7f51e9538621e694a59
[INFO] running `Command { std: "docker" "start" "-a" "bbb5c83768dff4bfd3da2d3a1997cd0db45a2c7d3743e7f51e9538621e694a59", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling time-macros v0.2.9
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling thiserror v1.0.41
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking time v0.3.22
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking simplelog v0.12.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.41
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.29.1
[INFO] [stderr]     Checking mini-container v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.41s
[INFO] running `Command { std: "docker" "inspect" "bbb5c83768dff4bfd3da2d3a1997cd0db45a2c7d3743e7f51e9538621e694a59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbb5c83768dff4bfd3da2d3a1997cd0db45a2c7d3743e7f51e9538621e694a59", kill_on_drop: false }`
[INFO] [stdout] bbb5c83768dff4bfd3da2d3a1997cd0db45a2c7d3743e7f51e9538621e694a59