[INFO] fetching crate differ 1.0.2...
[INFO] testing differ-1.0.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate differ 1.0.2 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate differ 1.0.2 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate differ 1.0.2
[INFO] finished tweaking crates.io crate differ 1.0.2
[INFO] tweaked toml for crates.io crate differ 1.0.2 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate crates.io crate differ 1.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 927fe663ef4f9c8a4b36a096289a61569ac64fe7f67d7a046e4a4820cb8463e7
[INFO] running `Command { std: "docker" "start" "-a" "927fe663ef4f9c8a4b36a096289a61569ac64fe7f67d7a046e4a4820cb8463e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "927fe663ef4f9c8a4b36a096289a61569ac64fe7f67d7a046e4a4820cb8463e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "927fe663ef4f9c8a4b36a096289a61569ac64fe7f67d7a046e4a4820cb8463e7", kill_on_drop: false }`
[INFO] [stdout] 927fe663ef4f9c8a4b36a096289a61569ac64fe7f67d7a046e4a4820cb8463e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 598602a86d79231e3ee1a747ef6611bccaad7f5a0b57bf022b4025d65499a47d
[INFO] running `Command { std: "docker" "start" "-a" "598602a86d79231e3ee1a747ef6611bccaad7f5a0b57bf022b4025d65499a47d", kill_on_drop: false }`
[INFO] [stderr]    Compiling differ v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "598602a86d79231e3ee1a747ef6611bccaad7f5a0b57bf022b4025d65499a47d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "598602a86d79231e3ee1a747ef6611bccaad7f5a0b57bf022b4025d65499a47d", kill_on_drop: false }`
[INFO] [stdout] 598602a86d79231e3ee1a747ef6611bccaad7f5a0b57bf022b4025d65499a47d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b6463e4e177f1c1816d01da2548d0855a5130cdbce6761b54a8c2ab887a0423
[INFO] running `Command { std: "docker" "start" "-a" "9b6463e4e177f1c1816d01da2548d0855a5130cdbce6761b54a8c2ab887a0423", kill_on_drop: false }`
[INFO] [stderr]    Compiling differ v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> examples/simple.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     x: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> examples/simple.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     y: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]    --> src/tests.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         x: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]    --> src/tests.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |         y: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "9b6463e4e177f1c1816d01da2548d0855a5130cdbce6761b54a8c2ab887a0423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6463e4e177f1c1816d01da2548d0855a5130cdbce6761b54a8c2ab887a0423", kill_on_drop: false }`
[INFO] [stdout] 9b6463e4e177f1c1816d01da2548d0855a5130cdbce6761b54a8c2ab887a0423
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 289fa11c0e61cdfbe69f831d6a186665f533bd5f94568e69597011b37eed4553
[INFO] running `Command { std: "docker" "start" "-a" "289fa11c0e61cdfbe69f831d6a186665f533bd5f94568e69597011b37eed4553", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]    --> src/tests.rs:188:9
[INFO] [stderr]     |
[INFO] [stderr] 188 |         x: i32,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]    --> src/tests.rs:189:9
[INFO] [stderr]     |
[INFO] [stderr] 189 |         y: i32,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `differ` (lib test) generated 2 warnings
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> examples/simple.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     x: i32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> examples/simple.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     y: i32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `differ` (example "simple") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/differ-7e0bcb069ac4308b)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test tests::tests::t02 ... ok
[INFO] [stdout] test tests::tests::t01 ... ok
[INFO] [stdout] test tests::tests::t04 ... ok
[INFO] [stdout] test tests::tests::t03 ... ok
[INFO] [stdout] test tests::tests::t06 ... ok
[INFO] [stdout] test tests::tests::t07 ... ok
[INFO] [stdout] test tests::tests::t05 ... ok
[INFO] [stdout] test tests::tests::t08 ... ok
[INFO] [stdout] test tests::tests::t09 ... ok
[INFO] [stdout] test tests::tests::t10 ... ok
[INFO] [stdout] test tests::tests::t11 ... ok
[INFO] [stdout] test tests::tests::t12 ... ok
[INFO] [stdout] test tests::tests::t13 ... ok
[INFO] [stdout] test tests::tests::t14 ... ok
[INFO] [stdout] test tests::tests::t15 ... ok
[INFO] [stdout] test tests::tests::t16 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests differ
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/lib.rs - (line 83) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.79s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "289fa11c0e61cdfbe69f831d6a186665f533bd5f94568e69597011b37eed4553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289fa11c0e61cdfbe69f831d6a186665f533bd5f94568e69597011b37eed4553", kill_on_drop: false }`
[INFO] [stdout] 289fa11c0e61cdfbe69f831d6a186665f533bd5f94568e69597011b37eed4553