[INFO] cloning repository https://github.com/morgenm/joe-bbm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/morgenm/joe-bbm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorgenm%2Fjoe-bbm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorgenm%2Fjoe-bbm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00db4795d1ace7cc638bebb1646043635630b60e
[INFO] testing morgenm/joe-bbm against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorgenm%2Fjoe-bbm" "/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/morgenm/joe-bbm on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/morgenm/joe-bbm
[INFO] finished tweaking git repo https://github.com/morgenm/joe-bbm
[INFO] tweaked toml for git repo https://github.com/morgenm/joe-bbm written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/morgenm/joe-bbm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-demangle v0.1.15
[INFO] [stderr]   Downloaded quote v0.6.12
[INFO] [stderr]   Downloaded cc v1.0.37
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded backtrace v0.3.30
[INFO] [stderr]   Downloaded dirs-sys v0.3.3
[INFO] [stderr]   Downloaded autocfg v0.1.4
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded redox_users v0.3.0
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] [stderr]   Downloaded getopts v0.2.19
[INFO] [stderr]   Downloaded dirs v2.0.1
[INFO] [stderr]   Downloaded args v2.2.0
[INFO] [stderr]   Downloaded syn v0.15.37
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4464018a39934f02b4ced1c2e1170324d42b0f38ffe10c085aaa65d2492ea93
[INFO] running `Command { std: "docker" "start" "-a" "d4464018a39934f02b4ced1c2e1170324d42b0f38ffe10c085aaa65d2492ea93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4464018a39934f02b4ced1c2e1170324d42b0f38ffe10c085aaa65d2492ea93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4464018a39934f02b4ced1c2e1170324d42b0f38ffe10c085aaa65d2492ea93", kill_on_drop: false }`
[INFO] [stdout] d4464018a39934f02b4ced1c2e1170324d42b0f38ffe10c085aaa65d2492ea93
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dc67331a5d04acd1489b7f09187a3e1d8b9eb4416dfeed8962864860289b9a2
[INFO] running `Command { std: "docker" "start" "-a" "2dc67331a5d04acd1489b7f09187a3e1d8b9eb4416dfeed8962864860289b9a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling getopts v0.2.19
[INFO] [stderr]    Compiling args v2.2.0
[INFO] [stderr]    Compiling dirs-sys v0.3.3
[INFO] [stderr]    Compiling dirs v2.0.1
[INFO] [stderr]    Compiling joe-bbm v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         Err(e) => String::from("~")
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "2dc67331a5d04acd1489b7f09187a3e1d8b9eb4416dfeed8962864860289b9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc67331a5d04acd1489b7f09187a3e1d8b9eb4416dfeed8962864860289b9a2", kill_on_drop: false }`
[INFO] [stdout] 2dc67331a5d04acd1489b7f09187a3e1d8b9eb4416dfeed8962864860289b9a2
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d2592dc4db8f1451cc3ece7e9dd0a0c23edebc8797185aa84532e16c9b35556
[INFO] running `Command { std: "docker" "start" "-a" "5d2592dc4db8f1451cc3ece7e9dd0a0c23edebc8797185aa84532e16c9b35556", kill_on_drop: false }`
[INFO] [stderr]    Compiling joe-bbm v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         Err(e) => String::from("~")
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5d2592dc4db8f1451cc3ece7e9dd0a0c23edebc8797185aa84532e16c9b35556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d2592dc4db8f1451cc3ece7e9dd0a0c23edebc8797185aa84532e16c9b35556", kill_on_drop: false }`
[INFO] [stdout] 5d2592dc4db8f1451cc3ece7e9dd0a0c23edebc8797185aa84532e16c9b35556
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 35d943a888b421d7dc776ade2d4cd93d52005f3784014145f731172b76c6fb2f
[INFO] running `Command { std: "docker" "start" "-a" "35d943a888b421d7dc776ade2d4cd93d52005f3784014145f731172b76c6fb2f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |         Err(e) => String::from("~")
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `joe-bbm` (bin "joe-bbm" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/joe_bbm-5caeca290949e0a1)
[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" "35d943a888b421d7dc776ade2d4cd93d52005f3784014145f731172b76c6fb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35d943a888b421d7dc776ade2d4cd93d52005f3784014145f731172b76c6fb2f", kill_on_drop: false }`
[INFO] [stdout] 35d943a888b421d7dc776ade2d4cd93d52005f3784014145f731172b76c6fb2f