[INFO] cloning repository https://github.com/ifschleife/rust_tracing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ifschleife/rust_tracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifschleife%2Frust_tracing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifschleife%2Frust_tracing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 522d94d80bbe517a860ca714ad8c5e038a37d40e
[INFO] checking ifschleife/rust_tracing against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifschleife%2Frust_tracing" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ifschleife/rust_tracing on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ifschleife/rust_tracing
[INFO] finished tweaking git repo https://github.com/ifschleife/rust_tracing
[INFO] tweaked toml for git repo https://github.com/ifschleife/rust_tracing written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ifschleife/rust_tracing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf2ce3d17bfbcfff123dc2ee0e5b6a42392fa63c46c0f1ef722ce380e67c24f2
[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" "bf2ce3d17bfbcfff123dc2ee0e5b6a42392fa63c46c0f1ef722ce380e67c24f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf2ce3d17bfbcfff123dc2ee0e5b6a42392fa63c46c0f1ef722ce380e67c24f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2ce3d17bfbcfff123dc2ee0e5b6a42392fa63c46c0f1ef722ce380e67c24f2", kill_on_drop: false }`
[INFO] [stdout] bf2ce3d17bfbcfff123dc2ee0e5b6a42392fa63c46c0f1ef722ce380e67c24f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34d55a0cd27e60e3fe50c2203658a49afae85796a060edb756f68f5764034b22
[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" "34d55a0cd27e60e3fe50c2203658a49afae85796a060edb756f68f5764034b22", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking inflate v0.4.2
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking rand v0.5.2
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking rust_tracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.45s
[INFO] running `Command { std: "docker" "inspect" "34d55a0cd27e60e3fe50c2203658a49afae85796a060edb756f68f5764034b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34d55a0cd27e60e3fe50c2203658a49afae85796a060edb756f68f5764034b22", kill_on_drop: false }`
[INFO] [stdout] 34d55a0cd27e60e3fe50c2203658a49afae85796a060edb756f68f5764034b22