[INFO] cloning repository https://github.com/wrwwww/my_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wrwwww/my_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrwwww%2Fmy_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrwwww%2Fmy_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 765116f80972aed256756ea36f6d0eff90216ada
[INFO] checking wrwwww/my_lib against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrwwww%2Fmy_lib" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wrwwww/my_lib 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/wrwwww/my_lib
[INFO] finished tweaking git repo https://github.com/wrwwww/my_lib
[INFO] tweaked toml for git repo https://github.com/wrwwww/my_lib written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wrwwww/my_lib 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] db6fcee37ec55d8c5ce1b5cd843acd424a46f6429bf03b049a311de4d76e1c1f
[INFO] running `Command { std: "docker" "start" "-a" "db6fcee37ec55d8c5ce1b5cd843acd424a46f6429bf03b049a311de4d76e1c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db6fcee37ec55d8c5ce1b5cd843acd424a46f6429bf03b049a311de4d76e1c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db6fcee37ec55d8c5ce1b5cd843acd424a46f6429bf03b049a311de4d76e1c1f", kill_on_drop: false }`
[INFO] [stdout] db6fcee37ec55d8c5ce1b5cd843acd424a46f6429bf03b049a311de4d76e1c1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0d31e76bcf1894ad177be105091595f0d8b1d5246d18bdbb0c78e948d0c3299f
[INFO] running `Command { std: "docker" "start" "-a" "0d31e76bcf1894ad177be105091595f0d8b1d5246d18bdbb0c78e948d0c3299f", kill_on_drop: false }`
[INFO] [stderr]     Checking my_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::is_sorted`
[INFO] [stdout]  --> src/sort/quick_sort.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use super::is_sorted;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `graph::*`
[INFO] [stdout]  --> src/utils/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use graph::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `graph::*`
[INFO] [stdout]  --> src/utils/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use graph::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/test/thread_pool.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |             let a=10;
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "0d31e76bcf1894ad177be105091595f0d8b1d5246d18bdbb0c78e948d0c3299f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d31e76bcf1894ad177be105091595f0d8b1d5246d18bdbb0c78e948d0c3299f", kill_on_drop: false }`
[INFO] [stdout] 0d31e76bcf1894ad177be105091595f0d8b1d5246d18bdbb0c78e948d0c3299f
[INFO] checking wrwwww/my_lib against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrwwww%2Fmy_lib" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wrwwww/my_lib 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/wrwwww/my_lib
[INFO] finished tweaking git repo https://github.com/wrwwww/my_lib
[INFO] tweaked toml for git repo https://github.com/wrwwww/my_lib written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wrwwww/my_lib 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 521efbca7a635c9ad940f274ace24e539c766bdec4d4d50c2bb58cb7b82e3131
[INFO] running `Command { std: "docker" "start" "-a" "521efbca7a635c9ad940f274ace24e539c766bdec4d4d50c2bb58cb7b82e3131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "521efbca7a635c9ad940f274ace24e539c766bdec4d4d50c2bb58cb7b82e3131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521efbca7a635c9ad940f274ace24e539c766bdec4d4d50c2bb58cb7b82e3131", kill_on_drop: false }`
[INFO] [stdout] 521efbca7a635c9ad940f274ace24e539c766bdec4d4d50c2bb58cb7b82e3131
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b9981059eceddb148c5680bba592b5392beb8aca260f8aafa45d7e659d8c9aff
[INFO] running `Command { std: "docker" "start" "-a" "b9981059eceddb148c5680bba592b5392beb8aca260f8aafa45d7e659d8c9aff", kill_on_drop: false }`
[INFO] [stderr]     Checking my_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::is_sorted`
[INFO] [stdout]  --> src/sort/quick_sort.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use super::is_sorted;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `graph::*`
[INFO] [stdout]  --> src/utils/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use graph::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `graph::*`
[INFO] [stdout]  --> src/utils/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use graph::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/test/thread_pool.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |             let a=10;
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "b9981059eceddb148c5680bba592b5392beb8aca260f8aafa45d7e659d8c9aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9981059eceddb148c5680bba592b5392beb8aca260f8aafa45d7e659d8c9aff", kill_on_drop: false }`
[INFO] [stdout] b9981059eceddb148c5680bba592b5392beb8aca260f8aafa45d7e659d8c9aff