[INFO] fetching crate linemux 0.1.1...
[INFO] checking linemux-0.1.1 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate linemux 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate linemux 0.1.1 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linemux 0.1.1
[INFO] finished tweaking crates.io crate linemux 0.1.1
[INFO] tweaked toml for crates.io crate linemux 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate linemux 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filetime v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5709302127b3d9aa3d518e46e68655ff72a8d30d27e0f90bf3304b20a99363ed
[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" "5709302127b3d9aa3d518e46e68655ff72a8d30d27e0f90bf3304b20a99363ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5709302127b3d9aa3d518e46e68655ff72a8d30d27e0f90bf3304b20a99363ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5709302127b3d9aa3d518e46e68655ff72a8d30d27e0f90bf3304b20a99363ed", kill_on_drop: false }`
[INFO] [stdout] 5709302127b3d9aa3d518e46e68655ff72a8d30d27e0f90bf3304b20a99363ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b753f5a31ce2dccc818586950228a560bce8a65f0c209b9de78c6c7425ac400c
[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" "b753f5a31ce2dccc818586950228a560bce8a65f0c209b9de78c6c7425ac400c", 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 v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.9
[INFO] [stderr]     Checking inotify v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]     Checking notify v5.0.0-pre.2
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.18
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking linemux v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.04s
[INFO] running `Command { std: "docker" "inspect" "b753f5a31ce2dccc818586950228a560bce8a65f0c209b9de78c6c7425ac400c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b753f5a31ce2dccc818586950228a560bce8a65f0c209b9de78c6c7425ac400c", kill_on_drop: false }`
[INFO] [stdout] b753f5a31ce2dccc818586950228a560bce8a65f0c209b9de78c6c7425ac400c