[INFO] fetching crate gco 0.2.0...
[INFO] checking gco-0.2.0 against beta for pr-78714
[INFO] extracting crate gco 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gco 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gco 0.2.0
[INFO] finished tweaking crates.io crate gco 0.2.0
[INFO] tweaked toml for crates.io crate gco 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate gco 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca1250ab0ec6facdaff5ffd83928373b1e5fd4446ab4c154c553a6e810863c7d
[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" "ca1250ab0ec6facdaff5ffd83928373b1e5fd4446ab4c154c553a6e810863c7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca1250ab0ec6facdaff5ffd83928373b1e5fd4446ab4c154c553a6e810863c7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca1250ab0ec6facdaff5ffd83928373b1e5fd4446ab4c154c553a6e810863c7d", kill_on_drop: false }`
[INFO] [stdout] ca1250ab0ec6facdaff5ffd83928373b1e5fd4446ab4c154c553a6e810863c7d
[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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c25669224cd961478ab86e488c85b68cbdcc080deec3b4fb3713fd3c6ff3af5
[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" "7c25669224cd961478ab86e488c85b68cbdcc080deec3b4fb3713fd3c6ff3af5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking fuzzy-matcher v0.3.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tuikit v0.3.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking skim v0.8.1
[INFO] [stderr]     Checking gco v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.27s
[INFO] running `Command { std: "docker" "inspect" "7c25669224cd961478ab86e488c85b68cbdcc080deec3b4fb3713fd3c6ff3af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c25669224cd961478ab86e488c85b68cbdcc080deec3b4fb3713fd3c6ff3af5", kill_on_drop: false }`
[INFO] [stdout] 7c25669224cd961478ab86e488c85b68cbdcc080deec3b4fb3713fd3c6ff3af5