[INFO] cloning repository https://github.com/Velfi/failure-fern-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Velfi/failure-fern-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVelfi%2Ffailure-fern-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVelfi%2Ffailure-fern-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4178a1418c6ca75b0c6b00876303d84233ee0811
[INFO] testing Velfi/failure-fern-example against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVelfi%2Ffailure-fern-example" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Velfi/failure-fern-example on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Velfi/failure-fern-example
[INFO] finished tweaking git repo https://github.com/Velfi/failure-fern-example
[INFO] tweaked toml for git repo https://github.com/Velfi/failure-fern-example written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Velfi/failure-fern-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.6
[INFO] [stderr]   Downloaded colored v1.6.0
[INFO] [stderr]   Downloaded num-traits v0.2.1
[INFO] [stderr]   Downloaded fern v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 77311f563a10f5ecc9bb74e276d1cec58aee2b38f931269cf8d694d3b3997094
[INFO] running `Command { std: "docker" "start" "-a" "77311f563a10f5ecc9bb74e276d1cec58aee2b38f931269cf8d694d3b3997094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77311f563a10f5ecc9bb74e276d1cec58aee2b38f931269cf8d694d3b3997094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77311f563a10f5ecc9bb74e276d1cec58aee2b38f931269cf8d694d3b3997094", kill_on_drop: false }`
[INFO] [stdout] 77311f563a10f5ecc9bb74e276d1cec58aee2b38f931269cf8d694d3b3997094
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--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] 3bd877f7cde4e02abfc46808c8cf261c98ee248809bb693368e3d6047a71c449
[INFO] running `Command { std: "docker" "start" "-a" "3bd877f7cde4e02abfc46808c8cf261c98ee248809bb693368e3d6047a71c449", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling colored v1.6.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling fern v0.5.4
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling failure-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.23s
[INFO] running `Command { std: "docker" "inspect" "3bd877f7cde4e02abfc46808c8cf261c98ee248809bb693368e3d6047a71c449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bd877f7cde4e02abfc46808c8cf261c98ee248809bb693368e3d6047a71c449", kill_on_drop: false }`
[INFO] [stdout] 3bd877f7cde4e02abfc46808c8cf261c98ee248809bb693368e3d6047a71c449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f38a35af62e4a0b1f9de1bc79367bccd1ce44ac63ea45eb8eeb3b21525ff48
[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" "93f38a35af62e4a0b1f9de1bc79367bccd1ce44ac63ea45eb8eeb3b21525ff48", kill_on_drop: false }`
[INFO] [stderr]    Compiling failure-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "93f38a35af62e4a0b1f9de1bc79367bccd1ce44ac63ea45eb8eeb3b21525ff48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f38a35af62e4a0b1f9de1bc79367bccd1ce44ac63ea45eb8eeb3b21525ff48", kill_on_drop: false }`
[INFO] [stdout] 93f38a35af62e4a0b1f9de1bc79367bccd1ce44ac63ea45eb8eeb3b21525ff48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", 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] 7bb8d2254efe602a21c30327a2a663a3c96f067f0e9dac0158988728575ebecb
[INFO] running `Command { std: "docker" "start" "-a" "7bb8d2254efe602a21c30327a2a663a3c96f067f0e9dac0158988728575ebecb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/failure_learn-3427965f772ad9da)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7bb8d2254efe602a21c30327a2a663a3c96f067f0e9dac0158988728575ebecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb8d2254efe602a21c30327a2a663a3c96f067f0e9dac0158988728575ebecb", kill_on_drop: false }`
[INFO] [stdout] 7bb8d2254efe602a21c30327a2a663a3c96f067f0e9dac0158988728575ebecb