[INFO] cloning repository https://github.com/adamnemecek/ulps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamnemecek/ulps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamnemecek%2Fulps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamnemecek%2Fulps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bca35381e1c9ad338f84ae80e29dbabc817feed3
[INFO] checking adamnemecek/ulps against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamnemecek%2Fulps" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  90% (879/968)   
Checking out files:  91% (881/968)   
Checking out files:  92% (891/968)   
Checking out files:  93% (901/968)   
Checking out files:  94% (910/968)   
Checking out files:  95% (920/968)   
Checking out files:  96% (930/968)   
Checking out files:  97% (939/968)   
Checking out files:  98% (949/968)   
Checking out files:  99% (959/968)   
Checking out files: 100% (968/968)   
Checking out files: 100% (968/968), done.
[INFO] validating manifest of git repo https://github.com/adamnemecek/ulps on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adamnemecek/ulps
[INFO] finished tweaking git repo https://github.com/adamnemecek/ulps
[INFO] tweaked toml for git repo https://github.com/adamnemecek/ulps written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/adamnemecek/ulps already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbcabb167064d65ceec128a193565ea4869d1933e4bf3fa6524868743fc83a1f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cbcabb167064d65ceec128a193565ea4869d1933e4bf3fa6524868743fc83a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbcabb167064d65ceec128a193565ea4869d1933e4bf3fa6524868743fc83a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbcabb167064d65ceec128a193565ea4869d1933e4bf3fa6524868743fc83a1f", kill_on_drop: false }`
[INFO] [stdout] cbcabb167064d65ceec128a193565ea4869d1933e4bf3fa6524868743fc83a1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a9c02d5c9b090a3ac0b379f4023a76413311501eb889f8643d4c2a643f88381d
[INFO] running `Command { std: "docker" "start" "-a" "a9c02d5c9b090a3ac0b379f4023a76413311501eb889f8643d4c2a643f88381d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ulps v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Test`
[INFO] [stdout]  --> src/main.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Test {
[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: struct is never constructed: `Test`
[INFO] [stdout]  --> src/main.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Test {
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.57s
[INFO] running `Command { std: "docker" "inspect" "a9c02d5c9b090a3ac0b379f4023a76413311501eb889f8643d4c2a643f88381d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c02d5c9b090a3ac0b379f4023a76413311501eb889f8643d4c2a643f88381d", kill_on_drop: false }`
[INFO] [stdout] a9c02d5c9b090a3ac0b379f4023a76413311501eb889f8643d4c2a643f88381d