[INFO] cloning repository https://github.com/gsquire/concur
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gsquire/concur" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsquire%2Fconcur", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsquire%2Fconcur'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58fe13202e4473422f611a0623ba0ea1c5739743
[INFO] testing gsquire/concur against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsquire%2Fconcur" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gsquire/concur on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gsquire/concur
[INFO] finished tweaking git repo https://github.com/gsquire/concur
[INFO] tweaked toml for git repo https://github.com/gsquire/concur written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate git repo https://github.com/gsquire/concur already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazy_static v0.2.2
[INFO] [stderr]   Downloaded docopt v0.7.0
[INFO] [stderr]   Downloaded rustc-serialize v0.3.22
[INFO] [stderr]   Downloaded libc v0.2.21
[INFO] [stderr]   Downloaded regex-syntax v0.4.0
[INFO] [stderr]   Downloaded aho-corasick v0.6.3
[INFO] [stderr]   Downloaded thread-id v3.0.0
[INFO] [stderr]   Downloaded thread_local v0.3.3
[INFO] [stderr]   Downloaded memchr v1.0.1
[INFO] [stderr]   Downloaded regex v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c7bfcbea5afe83154c373ad3c90f3d298bb3d4c7ef737c33a6c16ebd5a4c735
[INFO] running `Command { std: "docker" "start" "-a" "4c7bfcbea5afe83154c373ad3c90f3d298bb3d4c7ef737c33a6c16ebd5a4c735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c7bfcbea5afe83154c373ad3c90f3d298bb3d4c7ef737c33a6c16ebd5a4c735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c7bfcbea5afe83154c373ad3c90f3d298bb3d4c7ef737c33a6c16ebd5a4c735", kill_on_drop: false }`
[INFO] [stdout] 4c7bfcbea5afe83154c373ad3c90f3d298bb3d4c7ef737c33a6c16ebd5a4c735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d37fb86f701a8aa80f1c6178f9c2180a431b3633aab5c0e32ee4afd6d29a0ed2
[INFO] running `Command { std: "docker" "start" "-a" "d37fb86f701a8aa80f1c6178f9c2180a431b3633aab5c0e32ee4afd6d29a0ed2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.4.0
[INFO] [stderr]    Compiling lazy_static v0.2.2
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling concur v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[derive(Clone, Debug, RustcDecodable)]
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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 14.66s
[INFO] running `Command { std: "docker" "inspect" "d37fb86f701a8aa80f1c6178f9c2180a431b3633aab5c0e32ee4afd6d29a0ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37fb86f701a8aa80f1c6178f9c2180a431b3633aab5c0e32ee4afd6d29a0ed2", kill_on_drop: false }`
[INFO] [stdout] d37fb86f701a8aa80f1c6178f9c2180a431b3633aab5c0e32ee4afd6d29a0ed2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ad44e6aceb5d118720911facda283def02f3b8ea80199d2ebb13a5581df7726
[INFO] running `Command { std: "docker" "start" "-a" "5ad44e6aceb5d118720911facda283def02f3b8ea80199d2ebb13a5581df7726", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling concur v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[derive(Clone, Debug, RustcDecodable)]
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "5ad44e6aceb5d118720911facda283def02f3b8ea80199d2ebb13a5581df7726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad44e6aceb5d118720911facda283def02f3b8ea80199d2ebb13a5581df7726", kill_on_drop: false }`
[INFO] [stdout] 5ad44e6aceb5d118720911facda283def02f3b8ea80199d2ebb13a5581df7726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 470af8575ad415b876ba51413f83b8e52cf2b14827a04fc737d0899d2a77d210
[INFO] running `Command { std: "docker" "start" "-a" "470af8575ad415b876ba51413f83b8e52cf2b14827a04fc737d0899d2a77d210", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]   --> src/main.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[derive(Clone, Debug, RustcDecodable)]
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `concur` (bin "concur" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.74s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/concur-39ee79b5b16ddbcb)
[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" "470af8575ad415b876ba51413f83b8e52cf2b14827a04fc737d0899d2a77d210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470af8575ad415b876ba51413f83b8e52cf2b14827a04fc737d0899d2a77d210", kill_on_drop: false }`
[INFO] [stdout] 470af8575ad415b876ba51413f83b8e52cf2b14827a04fc737d0899d2a77d210