[INFO] cloning repository https://github.com/stevesweetney/basic-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevesweetney/basic-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 965ba17cffe952654f9719e9f34dc61ccb6639de
[INFO] checking stevesweetney/basic-rs against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stevesweetney/basic-rs on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stevesweetney/basic-rs
[INFO] finished tweaking git repo https://github.com/stevesweetney/basic-rs
[INFO] tweaked toml for git repo https://github.com/stevesweetney/basic-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/stevesweetney/basic-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tinytemplate v1.0.1
[INFO] [stderr]   Downloaded resize v0.3.0
[INFO] [stderr]   Downloaded criterion-plot v0.3.1
[INFO] [stderr]   Downloaded lodepng v2.4.2
[INFO] [stderr]   Downloaded imagequant v2.11.9
[INFO] [stderr]   Downloaded natord v1.0.9
[INFO] [stderr]   Downloaded syn v0.15.27
[INFO] [stderr]   Downloaded rand_xoshiro v0.1.0
[INFO] [stderr]   Downloaded csv v1.0.6
[INFO] [stderr]   Downloaded criterion v0.2.11
[INFO] [stderr]   Downloaded gif-dispose v2.2.0
[INFO] [stderr]   Downloaded wild v2.0.1
[INFO] [stderr]   Downloaded gifski v0.8.7
[INFO] [stderr]   Downloaded imagequant-sys v2.12.2
[INFO] [stderr]   Downloaded imgref v1.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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] b9d6ccfdd3601da4fd529728493ca56b728a977b3090ffd37aa753f19353195d
[INFO] running `Command { std: "docker" "start" "-a" "b9d6ccfdd3601da4fd529728493ca56b728a977b3090ffd37aa753f19353195d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9d6ccfdd3601da4fd529728493ca56b728a977b3090ffd37aa753f19353195d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d6ccfdd3601da4fd529728493ca56b728a977b3090ffd37aa753f19353195d", kill_on_drop: false }`
[INFO] [stdout] b9d6ccfdd3601da4fd529728493ca56b728a977b3090ffd37aa753f19353195d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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] 7244e6fde7dad13ba885c1974cb4580b71de774cac2963b26a34dc1e6dd4df3f
[INFO] running `Command { std: "docker" "start" "-a" "7244e6fde7dad13ba885c1974cb4580b71de774cac2963b26a34dc1e6dd4df3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking imgref v1.3.5
[INFO] [stderr]     Checking resize v0.3.0
[INFO] [stderr]     Checking safe-transmute v0.10.1
[INFO] [stderr]     Checking wild v2.0.1
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking gif-dispose v2.2.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking lodepng v2.4.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling imagequant-sys v2.12.2
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking pbr v1.0.1
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]     Checking png v0.14.0
[INFO] [stderr]     Checking imagequant v2.11.9
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking gifski v0.8.7
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking csv v1.0.6
[INFO] [stderr]     Checking tinytemplate v1.0.1
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.0
[INFO] [stderr]     Checking basic v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.42s
[INFO] running `Command { std: "docker" "inspect" "7244e6fde7dad13ba885c1974cb4580b71de774cac2963b26a34dc1e6dd4df3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7244e6fde7dad13ba885c1974cb4580b71de774cac2963b26a34dc1e6dd4df3f", kill_on_drop: false }`
[INFO] [stdout] 7244e6fde7dad13ba885c1974cb4580b71de774cac2963b26a34dc1e6dd4df3f