[INFO] fetching crate linemux 0.2.1...
[INFO] checking linemux-0.2.1 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate linemux 0.2.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate linemux 0.2.1 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linemux 0.2.1
[INFO] finished tweaking crates.io crate linemux 0.2.1
[INFO] tweaked toml for crates.io crate linemux 0.2.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate linemux 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] f69df24b1a3f7a2736527693594a568f9c5cf8a57643291f3c075de175bec009
[INFO] running `Command { std: "docker" "start" "-a" "f69df24b1a3f7a2736527693594a568f9c5cf8a57643291f3c075de175bec009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f69df24b1a3f7a2736527693594a568f9c5cf8a57643291f3c075de175bec009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f69df24b1a3f7a2736527693594a568f9c5cf8a57643291f3c075de175bec009", kill_on_drop: false }`
[INFO] [stdout] f69df24b1a3f7a2736527693594a568f9c5cf8a57643291f3c075de175bec009
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6419aac31a8367977443827f3b4f0ff43acef94f3b2a0305677d7a09cf12561
[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" "c6419aac31a8367977443827f3b4f0ff43acef94f3b2a0305677d7a09cf12561", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling tokio v1.1.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]     Checking mio v0.7.8
[INFO] [stderr]     Checking inotify v0.9.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking notify v5.0.0-pre.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking linemux v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.38s
[INFO] running `Command { std: "docker" "inspect" "c6419aac31a8367977443827f3b4f0ff43acef94f3b2a0305677d7a09cf12561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6419aac31a8367977443827f3b4f0ff43acef94f3b2a0305677d7a09cf12561", kill_on_drop: false }`
[INFO] [stdout] c6419aac31a8367977443827f3b4f0ff43acef94f3b2a0305677d7a09cf12561