[INFO] fetching crate chords 0.2.7...
[INFO] testing chords-0.2.7 against 1.60.0 for beta-1.61-1
[INFO] extracting crate chords 0.2.7 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate chords 0.2.7 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chords 0.2.7
[INFO] finished tweaking crates.io crate chords 0.2.7
[INFO] tweaked toml for crates.io crate chords 0.2.7 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-permutation v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a8238f2ba1d1b24b5914ece9cf0b2761a59c86dbf6302617470387277aa428b
[INFO] running `Command { std: "docker" "start" "-a" "2a8238f2ba1d1b24b5914ece9cf0b2761a59c86dbf6302617470387277aa428b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a8238f2ba1d1b24b5914ece9cf0b2761a59c86dbf6302617470387277aa428b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a8238f2ba1d1b24b5914ece9cf0b2761a59c86dbf6302617470387277aa428b", kill_on_drop: false }`
[INFO] [stdout] 2a8238f2ba1d1b24b5914ece9cf0b2761a59c86dbf6302617470387277aa428b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f598782b2a20ff575ef0c70046490e935c82f8dad15b3f39090e5aae9b80a572
[INFO] running `Command { std: "docker" "start" "-a" "f598782b2a20ff575ef0c70046490e935c82f8dad15b3f39090e5aae9b80a572", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling ordered-permutation v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling chords v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.27s
[INFO] running `Command { std: "docker" "inspect" "f598782b2a20ff575ef0c70046490e935c82f8dad15b3f39090e5aae9b80a572", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f598782b2a20ff575ef0c70046490e935c82f8dad15b3f39090e5aae9b80a572", kill_on_drop: false }`
[INFO] [stdout] f598782b2a20ff575ef0c70046490e935c82f8dad15b3f39090e5aae9b80a572
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bcb71dbc5d0e479ccb10824642a6e93d7c90343a2d51326550d291368ec9465
[INFO] running `Command { std: "docker" "start" "-a" "8bcb71dbc5d0e479ccb10824642a6e93d7c90343a2d51326550d291368ec9465", kill_on_drop: false }`
[INFO] [stderr]    Compiling chords v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "8bcb71dbc5d0e479ccb10824642a6e93d7c90343a2d51326550d291368ec9465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bcb71dbc5d0e479ccb10824642a6e93d7c90343a2d51326550d291368ec9465", kill_on_drop: false }`
[INFO] [stdout] 8bcb71dbc5d0e479ccb10824642a6e93d7c90343a2d51326550d291368ec9465
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d3d1f36523f7d0f2b88f23301d5f8a0540ef83aee901261311f27d6f27c4fa2e
[INFO] running `Command { std: "docker" "start" "-a" "d3d1f36523f7d0f2b88f23301d5f8a0540ef83aee901261311f27d6f27c4fa2e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chords-123d0da40f5f9e00)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chords-3ed467a3aef77feb)
[INFO] [stderr]    Doc-tests chords
[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] [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" "d3d1f36523f7d0f2b88f23301d5f8a0540ef83aee901261311f27d6f27c4fa2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d1f36523f7d0f2b88f23301d5f8a0540ef83aee901261311f27d6f27c4fa2e", kill_on_drop: false }`
[INFO] [stdout] d3d1f36523f7d0f2b88f23301d5f8a0540ef83aee901261311f27d6f27c4fa2e