[INFO] cloning repository https://github.com/miguelis/private_optimizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miguelis/private_optimizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelis%2Fprivate_optimizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelis%2Fprivate_optimizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb457e85764b6ff7dad71d2b065bf85448f58d0a
[INFO] checking miguelis/private_optimizer against master#1f81f906893d166d05fb4839f169983f2b564cc7 for pr-135167
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiguelis%2Fprivate_optimizer" "/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/miguelis/private_optimizer on toolchain 1f81f906893d166d05fb4839f169983f2b564cc7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/miguelis/private_optimizer
[INFO] finished tweaking git repo https://github.com/miguelis/private_optimizer
[INFO] tweaked toml for git repo https://github.com/miguelis/private_optimizer written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/miguelis/private_optimizer 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" "+1f81f906893d166d05fb4839f169983f2b564cc7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 815bc09d96f4e307ed9b9fff33600133dee72065cdc28f12b524c635fd0861f1
[INFO] running `Command { std: "docker" "start" "-a" "815bc09d96f4e307ed9b9fff33600133dee72065cdc28f12b524c635fd0861f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "815bc09d96f4e307ed9b9fff33600133dee72065cdc28f12b524c635fd0861f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "815bc09d96f4e307ed9b9fff33600133dee72065cdc28f12b524c635fd0861f1", kill_on_drop: false }`
[INFO] [stdout] 815bc09d96f4e307ed9b9fff33600133dee72065cdc28f12b524c635fd0861f1
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1f81f906893d166d05fb4839f169983f2b564cc7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0262a8d609b33c7391c1247a5ec72b11d9fdfd9c651adec22a860c767ce6e909
[INFO] running `Command { std: "docker" "start" "-a" "0262a8d609b33c7391c1247a5ec72b11d9fdfd9c651adec22a860c767ce6e909", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking constant_tracking v2.0.1 (/opt/rustwide/workdir/constant_tracking)
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint-dig v0.6.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetaDTI3Sc/lib.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0262a8d609b33c7391c1247a5ec72b11d9fdfd9c651adec22a860c767ce6e909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0262a8d609b33c7391c1247a5ec72b11d9fdfd9c651adec22a860c767ce6e909", kill_on_drop: false }`
[INFO] [stdout] 0262a8d609b33c7391c1247a5ec72b11d9fdfd9c651adec22a860c767ce6e909