[INFO] cloning repository https://github.com/davesque/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davesque/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavesque%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavesque%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f34ea893666f3476b57893e26e0a5b7d75d1c8f
[INFO] testing davesque/learn-rust against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavesque%2Flearn-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davesque/learn-rust on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davesque/learn-rust
[INFO] finished tweaking git repo https://github.com/davesque/learn-rust
[INFO] tweaked toml for git repo https://github.com/davesque/learn-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/davesque/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 66a6bb244b5137d787f2cd5e3f458dcfc2873dcc6f061f817af8ca95632fd4be
[INFO] running `Command { std: "docker" "start" "-a" "66a6bb244b5137d787f2cd5e3f458dcfc2873dcc6f061f817af8ca95632fd4be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66a6bb244b5137d787f2cd5e3f458dcfc2873dcc6f061f817af8ca95632fd4be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66a6bb244b5137d787f2cd5e3f458dcfc2873dcc6f061f817af8ca95632fd4be", kill_on_drop: false }`
[INFO] [stdout] 66a6bb244b5137d787f2cd5e3f458dcfc2873dcc6f061f817af8ca95632fd4be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3063fab9a770a8eb4b9658ae7f2a1e604ea3a76e8aba2dfa70031148c74f1f9
[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" "f3063fab9a770a8eb4b9658ae7f2a1e604ea3a76e8aba2dfa70031148c74f1f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.97s
[INFO] running `Command { std: "docker" "inspect" "f3063fab9a770a8eb4b9658ae7f2a1e604ea3a76e8aba2dfa70031148c74f1f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3063fab9a770a8eb4b9658ae7f2a1e604ea3a76e8aba2dfa70031148c74f1f9", kill_on_drop: false }`
[INFO] [stdout] f3063fab9a770a8eb4b9658ae7f2a1e604ea3a76e8aba2dfa70031148c74f1f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47b325137b2378cd5e44760b37ee35f05a44590e1eddadcab945e255cdc83cb3
[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" "47b325137b2378cd5e44760b37ee35f05a44590e1eddadcab945e255cdc83cb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "47b325137b2378cd5e44760b37ee35f05a44590e1eddadcab945e255cdc83cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b325137b2378cd5e44760b37ee35f05a44590e1eddadcab945e255cdc83cb3", kill_on_drop: false }`
[INFO] [stdout] 47b325137b2378cd5e44760b37ee35f05a44590e1eddadcab945e255cdc83cb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1e040b3d3e58a893f5dff3c8b1763a2fa25104436920d7109c0d99a6ac08c9d
[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" "c1e040b3d3e58a893f5dff3c8b1763a2fa25104436920d7109c0d99a6ac08c9d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/learn_rust-61d79cd917d6a876
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c1e040b3d3e58a893f5dff3c8b1763a2fa25104436920d7109c0d99a6ac08c9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e040b3d3e58a893f5dff3c8b1763a2fa25104436920d7109c0d99a6ac08c9d", kill_on_drop: false }`
[INFO] [stdout] c1e040b3d3e58a893f5dff3c8b1763a2fa25104436920d7109c0d99a6ac08c9d