[INFO] fetching crate singly_linked_list 0.1.0...
[INFO] testing singly_linked_list-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate singly_linked_list 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate singly_linked_list 0.1.0
[INFO] finished tweaking crates.io crate singly_linked_list 0.1.0
[INFO] tweaked toml for crates.io crate singly_linked_list 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate singly_linked_list 0.1.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c2fb0d8166c219f7723bed10876df107a28b3dde9301b4623c293b82af490e9
[INFO] running `Command { std: "docker" "start" "-a" "8c2fb0d8166c219f7723bed10876df107a28b3dde9301b4623c293b82af490e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c2fb0d8166c219f7723bed10876df107a28b3dde9301b4623c293b82af490e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c2fb0d8166c219f7723bed10876df107a28b3dde9301b4623c293b82af490e9", kill_on_drop: false }`
[INFO] [stdout] 8c2fb0d8166c219f7723bed10876df107a28b3dde9301b4623c293b82af490e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcb4cb542083d49619060d636227b1ac085a0ecd1f58f91935c0425b6e93e7a1
[INFO] running `Command { std: "docker" "start" "-a" "bcb4cb542083d49619060d636227b1ac085a0ecd1f58f91935c0425b6e93e7a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling singly_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "bcb4cb542083d49619060d636227b1ac085a0ecd1f58f91935c0425b6e93e7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcb4cb542083d49619060d636227b1ac085a0ecd1f58f91935c0425b6e93e7a1", kill_on_drop: false }`
[INFO] [stdout] bcb4cb542083d49619060d636227b1ac085a0ecd1f58f91935c0425b6e93e7a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58d39ec11b9f9e382d1cde45b805643c707fc4cc25a2a7281d90fa64dfc36e6e
[INFO] running `Command { std: "docker" "start" "-a" "58d39ec11b9f9e382d1cde45b805643c707fc4cc25a2a7281d90fa64dfc36e6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling singly_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "58d39ec11b9f9e382d1cde45b805643c707fc4cc25a2a7281d90fa64dfc36e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58d39ec11b9f9e382d1cde45b805643c707fc4cc25a2a7281d90fa64dfc36e6e", kill_on_drop: false }`
[INFO] [stdout] 58d39ec11b9f9e382d1cde45b805643c707fc4cc25a2a7281d90fa64dfc36e6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 81ea5eebe8548e4cc2180c74b4a23928037d4d55e8bf5764bcd22cffed1730f1
[INFO] running `Command { std: "docker" "start" "-a" "81ea5eebe8548e4cc2180c74b4a23928037d4d55e8bf5764bcd22cffed1730f1", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/singly_linked_list-81906137ebd9e8c2)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_empty_list ... ok
[INFO] [stdout] test tests::test_list_with_one_value ... ok
[INFO] [stdout] test tests::test_list_with_multiple_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests singly_linked_list
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - List<T>::new (line 24) ... ok
[INFO] [stdout] test src/lib.rs - List<T>::traverse (line 73) ... ok
[INFO] [stdout] test src/lib.rs - List<T>::add_item (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "81ea5eebe8548e4cc2180c74b4a23928037d4d55e8bf5764bcd22cffed1730f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81ea5eebe8548e4cc2180c74b4a23928037d4d55e8bf5764bcd22cffed1730f1", kill_on_drop: false }`
[INFO] [stdout] 81ea5eebe8548e4cc2180c74b4a23928037d4d55e8bf5764bcd22cffed1730f1