[INFO] fetching crate lcowsay 0.4.0...
[INFO] checking lcowsay-0.4.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate lcowsay 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate lcowsay 0.4.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lcowsay 0.4.0
[INFO] finished tweaking crates.io crate lcowsay 0.4.0
[INFO] tweaked toml for crates.io crate lcowsay 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate lcowsay 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colorgrad v0.3.0
[INFO] [stderr]   Downloaded csscolorparser v0.4.0
[INFO] [stderr]   Downloaded lcat v0.7.0
[INFO] [stderr]   Downloaded textwrap v0.13.2
[INFO] [stderr]   Downloaded smawk v0.3.1
[INFO] [stderr]   Downloaded mimalloc v0.1.24
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.20
[INFO] [stderr]   Downloaded hyphenation v0.8.0
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 016eb84a56fcb963c8ddcbecf986d75fcb63387454ffdbcd2ecb6e21c531409e
[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" "016eb84a56fcb963c8ddcbecf986d75fcb63387454ffdbcd2ecb6e21c531409e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "016eb84a56fcb963c8ddcbecf986d75fcb63387454ffdbcd2ecb6e21c531409e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "016eb84a56fcb963c8ddcbecf986d75fcb63387454ffdbcd2ecb6e21c531409e", kill_on_drop: false }`
[INFO] [stdout] 016eb84a56fcb963c8ddcbecf986d75fcb63387454ffdbcd2ecb6e21c531409e
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 83c19973f5666f48ec7e1c66e30433db799efca190abb20cc67e5072639628a7
[INFO] running `Command { std: "docker" "start" "-a" "83c19973f5666f48ec7e1c66e30433db799efca190abb20cc67e5072639628a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling fst v0.4.5
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling pocket-resources v0.3.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking csscolorparser v0.4.0
[INFO] [stderr]     Checking colorgrad v0.3.0
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking lcat v0.7.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking hyphenation_commons v0.8.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling hyphenation v0.8.0
[INFO] [stderr]     Checking textwrap v0.13.2
[INFO] [stderr]     Checking lcowsay v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.06s
[INFO] running `Command { std: "docker" "inspect" "83c19973f5666f48ec7e1c66e30433db799efca190abb20cc67e5072639628a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c19973f5666f48ec7e1c66e30433db799efca190abb20cc67e5072639628a7", kill_on_drop: false }`
[INFO] [stdout] 83c19973f5666f48ec7e1c66e30433db799efca190abb20cc67e5072639628a7