[INFO] cloning repository https://github.com/amendenchantment/namepermutations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amendenchantment/namepermutations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famendenchantment%2Fnamepermutations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famendenchantment%2Fnamepermutations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91ee211c0f1d2f1ab0af5d96eba1d145081c58fc
[INFO] checking amendenchantment/namepermutations against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famendenchantment%2Fnamepermutations" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amendenchantment/namepermutations 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/amendenchantment/namepermutations
[INFO] finished tweaking git repo https://github.com/amendenchantment/namepermutations
[INFO] tweaked toml for git repo https://github.com/amendenchantment/namepermutations written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/amendenchantment/namepermutations 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]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1f70a66c4962468cd8bed04539b1abb496a46729114863b5fdf0a300c6cb7a73
[INFO] running `Command { std: "docker" "start" "-a" "1f70a66c4962468cd8bed04539b1abb496a46729114863b5fdf0a300c6cb7a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f70a66c4962468cd8bed04539b1abb496a46729114863b5fdf0a300c6cb7a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f70a66c4962468cd8bed04539b1abb496a46729114863b5fdf0a300c6cb7a73", kill_on_drop: false }`
[INFO] [stdout] 1f70a66c4962468cd8bed04539b1abb496a46729114863b5fdf0a300c6cb7a73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b80fc12f265a55d53987f9428038998380dc6287d9bb083352004faf572ebdea
[INFO] running `Command { std: "docker" "start" "-a" "b80fc12f265a55d53987f9428038998380dc6287d9bb083352004faf572ebdea", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking namepermutations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `SymmetricDifference` is never used
[INFO] [stdout]   --> src/main.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | trait SymmetricDifference<T>
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SymmetricDifference` is never used
[INFO] [stdout]   --> src/main.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | trait SymmetricDifference<T>
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "b80fc12f265a55d53987f9428038998380dc6287d9bb083352004faf572ebdea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b80fc12f265a55d53987f9428038998380dc6287d9bb083352004faf572ebdea", kill_on_drop: false }`
[INFO] [stdout] b80fc12f265a55d53987f9428038998380dc6287d9bb083352004faf572ebdea
[INFO] checking amendenchantment/namepermutations against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famendenchantment%2Fnamepermutations" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amendenchantment/namepermutations 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/amendenchantment/namepermutations
[INFO] finished tweaking git repo https://github.com/amendenchantment/namepermutations
[INFO] tweaked toml for git repo https://github.com/amendenchantment/namepermutations written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/amendenchantment/namepermutations 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3c78becbbb64738fe7199d7da393bfcc3a315d8ad1567cf21ca3a5fa16dbeb51
[INFO] running `Command { std: "docker" "start" "-a" "3c78becbbb64738fe7199d7da393bfcc3a315d8ad1567cf21ca3a5fa16dbeb51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c78becbbb64738fe7199d7da393bfcc3a315d8ad1567cf21ca3a5fa16dbeb51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c78becbbb64738fe7199d7da393bfcc3a315d8ad1567cf21ca3a5fa16dbeb51", kill_on_drop: false }`
[INFO] [stdout] 3c78becbbb64738fe7199d7da393bfcc3a315d8ad1567cf21ca3a5fa16dbeb51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c59b9badc286b42ba4d2cb7d5e19667da2cfb812cecc8a670fcbb9da1184bb95
[INFO] running `Command { std: "docker" "start" "-a" "c59b9badc286b42ba4d2cb7d5e19667da2cfb812cecc8a670fcbb9da1184bb95", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking namepermutations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `SymmetricDifference` is never used
[INFO] [stdout]   --> src/main.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | trait SymmetricDifference<T>
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SymmetricDifference` is never used
[INFO] [stdout]   --> src/main.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | trait SymmetricDifference<T>
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `Command { std: "docker" "inspect" "c59b9badc286b42ba4d2cb7d5e19667da2cfb812cecc8a670fcbb9da1184bb95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c59b9badc286b42ba4d2cb7d5e19667da2cfb812cecc8a670fcbb9da1184bb95", kill_on_drop: false }`
[INFO] [stdout] c59b9badc286b42ba4d2cb7d5e19667da2cfb812cecc8a670fcbb9da1184bb95