[INFO] fetching crate gmux 0.1.4...
[INFO] checking gmux-0.1.4 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate gmux 0.1.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate gmux 0.1.4 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 crates.io crate gmux 0.1.4
[INFO] finished tweaking crates.io crate gmux 0.1.4
[INFO] tweaked toml for crates.io crate gmux 0.1.4 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate gmux 0.1.4 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 config v0.10.1
[INFO] [stderr]   Downloaded serde_test v0.8.23
[INFO] [stderr]   Downloaded redox_users v0.3.5
[INFO] [stderr]   Downloaded rust-ini v0.13.0
[INFO] [stderr]   Downloaded git2 v0.13.12
[INFO] [stderr]   Downloaded dirs v3.0.1
[INFO] [stderr]   Downloaded libssh2-sys v0.2.19
[INFO] [stderr]   Downloaded lexical-core v0.7.4
[INFO] [stderr]   Downloaded linked-hash-map v0.3.0
[INFO] [stderr]   Downloaded serde-hjson v0.9.1
[INFO] [stderr]   Downloaded libgit2-sys v0.12.14+1.1.0
[INFO] [stderr]   Downloaded pretty_env_logger v0.4.0
[INFO] [stderr]   Downloaded rust-argon2 v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] c2278ee21a5a52054ddaf4efc5f1e764c35eca0de568660ed3f4beaaec26eea5
[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" "c2278ee21a5a52054ddaf4efc5f1e764c35eca0de568660ed3f4beaaec26eea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2278ee21a5a52054ddaf4efc5f1e764c35eca0de568660ed3f4beaaec26eea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2278ee21a5a52054ddaf4efc5f1e764c35eca0de568660ed3f4beaaec26eea5", kill_on_drop: false }`
[INFO] [stdout] c2278ee21a5a52054ddaf4efc5f1e764c35eca0de568660ed3f4beaaec26eea5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 02fa0154fcdb1eb0ef09df03acc8eee3987adf9f9f066e54a58247378ff9522e
[INFO] running `Command { std: "docker" "start" "-a" "02fa0154fcdb1eb0ef09df03acc8eee3987adf9f9f066e54a58247378ff9522e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]    Compiling libgit2-sys v0.12.14+1.1.0
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking git2 v0.13.12
[INFO] [stderr]    Compiling structopt v0.3.20
[INFO] [stderr]    Compiling gmux v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: Error while copying completions: No such file or directory (os error 2)
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 34s
[INFO] running `Command { std: "docker" "inspect" "02fa0154fcdb1eb0ef09df03acc8eee3987adf9f9f066e54a58247378ff9522e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02fa0154fcdb1eb0ef09df03acc8eee3987adf9f9f066e54a58247378ff9522e", kill_on_drop: false }`
[INFO] [stdout] 02fa0154fcdb1eb0ef09df03acc8eee3987adf9f9f066e54a58247378ff9522e