[INFO] cloning repository https://github.com/izhengzhixian/robinson
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/izhengzhixian/robinson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fizhengzhixian%2Frobinson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fizhengzhixian%2Frobinson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 279b594c077cb1bf2b7e966cecdd663750149371
[INFO] checking izhengzhixian/robinson against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fizhengzhixian%2Frobinson" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/izhengzhixian/robinson
[INFO] finished tweaking git repo https://github.com/izhengzhixian/robinson
[INFO] tweaked toml for git repo https://github.com/izhengzhixian/robinson written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/izhengzhixian/robinson on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/izhengzhixian/robinson 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.1.39
[INFO] [stderr]   Downloaded num-iter v0.1.33
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f26e7275e586538610901fd1ad74f546a6fcb85c17c8f6e56955ca2fae739d9b
[INFO] running `Command { std: "docker" "start" "-a" "f26e7275e586538610901fd1ad74f546a6fcb85c17c8f6e56955ca2fae739d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f26e7275e586538610901fd1ad74f546a6fcb85c17c8f6e56955ca2fae739d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f26e7275e586538610901fd1ad74f546a6fcb85c17c8f6e56955ca2fae739d9b", kill_on_drop: false }`
[INFO] [stdout] f26e7275e586538610901fd1ad74f546a6fcb85c17c8f6e56955ca2fae739d9b
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b20765d692aafe7547dd15ecc6717d1f01b20377796b1c8cd7d44a4f88d1f4a6
[INFO] running `Command { std: "docker" "start" "-a" "b20765d692aafe7547dd15ecc6717d1f01b20377796b1c8cd7d44a4f88d1f4a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking robinson v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Clamp` is never used
[INFO] [stdout]    --> src/painting.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 130 | trait Clamp {
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Clamp` is never used
[INFO] [stdout]    --> src/painting.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 130 | trait Clamp {
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.04s
[INFO] running `Command { std: "docker" "inspect" "b20765d692aafe7547dd15ecc6717d1f01b20377796b1c8cd7d44a4f88d1f4a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20765d692aafe7547dd15ecc6717d1f01b20377796b1c8cd7d44a4f88d1f4a6", kill_on_drop: false }`
[INFO] [stdout] b20765d692aafe7547dd15ecc6717d1f01b20377796b1c8cd7d44a4f88d1f4a6