[INFO] crate pretty_trace 0.3.0 is already in cache
[INFO] checking pretty_trace-0.3.0 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate pretty_trace 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate pretty_trace 0.3.0 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pretty_trace 0.3.0
[INFO] finished tweaking crates.io crate pretty_trace 0.3.0
[INFO] tweaked toml for crates.io crate pretty_trace 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate pretty_trace 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fd9eb18ee587b56351ec3a09dac35b9ad71bc88aa6e93d553d66eb187f7547d
[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" "1fd9eb18ee587b56351ec3a09dac35b9ad71bc88aa6e93d553d66eb187f7547d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fd9eb18ee587b56351ec3a09dac35b9ad71bc88aa6e93d553d66eb187f7547d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd9eb18ee587b56351ec3a09dac35b9ad71bc88aa6e93d553d66eb187f7547d", kill_on_drop: false }`
[INFO] [stdout] 1fd9eb18ee587b56351ec3a09dac35b9ad71bc88aa6e93d553d66eb187f7547d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2062c7e1737fc2084bcc2f7a6fa85f27c0b958fab4d40205f4ed09be5e13905a
[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" "2062c7e1737fc2084bcc2f7a6fa85f27c0b958fab4d40205f4ed09be5e13905a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking stats_utils v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]     Checking vector_utils v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking string_utils v0.1.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]     Checking backtrace v0.3.45
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]     Checking io_utils v0.2.4
[INFO] [stderr]     Checking pretty_trace v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "2062c7e1737fc2084bcc2f7a6fa85f27c0b958fab4d40205f4ed09be5e13905a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2062c7e1737fc2084bcc2f7a6fa85f27c0b958fab4d40205f4ed09be5e13905a", kill_on_drop: false }`
[INFO] [stdout] 2062c7e1737fc2084bcc2f7a6fa85f27c0b958fab4d40205f4ed09be5e13905a