[INFO] cloning repository https://github.com/tomusdrw/scale-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomusdrw/scale-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomusdrw%2Fscale-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomusdrw%2Fscale-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1344f24187b88d9cf77e41d431b170c20010ccdb
[INFO] checking tomusdrw/scale-playground against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomusdrw%2Fscale-playground" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomusdrw/scale-playground on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomusdrw/scale-playground
[INFO] finished tweaking git repo https://github.com/tomusdrw/scale-playground
[INFO] tweaked toml for git repo https://github.com/tomusdrw/scale-playground written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/tomusdrw/scale-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded radium v0.6.2
[INFO] [stderr]   Downloaded bitvec v0.20.1
[INFO] [stderr]   Downloaded parity-scale-codec v2.0.0
[INFO] [stderr]   Downloaded parity-scale-codec-derive v2.0.1
[INFO] [stderr]   Downloaded tap v1.0.0
[INFO] [stderr]   Downloaded byte-slice-cast v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", 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] a7dc2360ff5c5ec34ba736f60dc9dbd3efe5a6e8c036237afc4f436d3554fee5
[INFO] running `Command { std: "docker" "start" "-a" "a7dc2360ff5c5ec34ba736f60dc9dbd3efe5a6e8c036237afc4f436d3554fee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7dc2360ff5c5ec34ba736f60dc9dbd3efe5a6e8c036237afc4f436d3554fee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7dc2360ff5c5ec34ba736f60dc9dbd3efe5a6e8c036237afc4f436d3554fee5", kill_on_drop: false }`
[INFO] [stdout] a7dc2360ff5c5ec34ba736f60dc9dbd3efe5a6e8c036237afc4f436d3554fee5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8d02d765b5bef9aeefa565f8d611847eb0bc75f359cacb11daf81765e516652
[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" "d8d02d765b5bef9aeefa565f8d611847eb0bc75f359cacb11daf81765e516652", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking byte-slice-cast v1.0.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling hex-literal v0.3.1
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking bitvec v0.20.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.0.1
[INFO] [stderr]     Checking parity-scale-codec v2.0.0
[INFO] [stderr]     Checking scale-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.95s
[INFO] running `Command { std: "docker" "inspect" "d8d02d765b5bef9aeefa565f8d611847eb0bc75f359cacb11daf81765e516652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8d02d765b5bef9aeefa565f8d611847eb0bc75f359cacb11daf81765e516652", kill_on_drop: false }`
[INFO] [stdout] d8d02d765b5bef9aeefa565f8d611847eb0bc75f359cacb11daf81765e516652