[INFO] fetching crate simple-undo 0.1.1...
[INFO] testing simple-undo-0.1.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate simple-undo 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate simple-undo 0.1.1
[INFO] finished tweaking crates.io crate simple-undo 0.1.1
[INFO] tweaked toml for crates.io crate simple-undo 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple-undo 0.1.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae22cf6eac747ef166c2e27b56af75bdfc3b7a7702a232e95076938194ea04d2
[INFO] running `Command { std: "docker" "start" "-a" "ae22cf6eac747ef166c2e27b56af75bdfc3b7a7702a232e95076938194ea04d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae22cf6eac747ef166c2e27b56af75bdfc3b7a7702a232e95076938194ea04d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae22cf6eac747ef166c2e27b56af75bdfc3b7a7702a232e95076938194ea04d2", kill_on_drop: false }`
[INFO] [stdout] ae22cf6eac747ef166c2e27b56af75bdfc3b7a7702a232e95076938194ea04d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88a2dc6a37c874b57ad5e3cedc88ef86d65da9af78d289b9fe00cca1e4606fdc
[INFO] running `Command { std: "docker" "start" "-a" "88a2dc6a37c874b57ad5e3cedc88ef86d65da9af78d289b9fe00cca1e4606fdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-undo v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "88a2dc6a37c874b57ad5e3cedc88ef86d65da9af78d289b9fe00cca1e4606fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a2dc6a37c874b57ad5e3cedc88ef86d65da9af78d289b9fe00cca1e4606fdc", kill_on_drop: false }`
[INFO] [stdout] 88a2dc6a37c874b57ad5e3cedc88ef86d65da9af78d289b9fe00cca1e4606fdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45507a2ce1fcb9a699571cc4883786301724f1f9046708d2f29527100e82f4a1
[INFO] running `Command { std: "docker" "start" "-a" "45507a2ce1fcb9a699571cc4883786301724f1f9046708d2f29527100e82f4a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-undo v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "45507a2ce1fcb9a699571cc4883786301724f1f9046708d2f29527100e82f4a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45507a2ce1fcb9a699571cc4883786301724f1f9046708d2f29527100e82f4a1", kill_on_drop: false }`
[INFO] [stdout] 45507a2ce1fcb9a699571cc4883786301724f1f9046708d2f29527100e82f4a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 60d53f49ea60bca9b5aabfacc9cc696f4949f7fa3615e59eddd5b6ac1b2a9a57
[INFO] running `Command { std: "docker" "start" "-a" "60d53f49ea60bca9b5aabfacc9cc696f4949f7fa3615e59eddd5b6ac1b2a9a57", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_undo-7b14af1021b65abd)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::it_discards_previous_updates_when_updating_after_an_undo ... ok
[INFO] [stdout] test tests::it_unwraps_the_inner_value ... ok
[INFO] [stdout] test tests::it_works_with_string ... ok
[INFO] [stdout] test tests::it_works_with_capturing_closures ... ok
[INFO] [stdout] test tests::it_does_nothing_on_too_many_undo_or_redo ... ok
[INFO] [stdout] test tests::it_can_undo_and_redo_updates ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_undo
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Undo<'state,TState>::new (line 24) ... ok
[INFO] [stdout] test src/lib.rs - Undo<'state,TState>::redo (line 109) ... ok
[INFO] [stdout] test src/lib.rs - Undo<'state,TState>::undo (line 80) ... ok
[INFO] [stdout] test src/lib.rs - Undo<'state,TState>::unwrap (line 41) ... ok
[INFO] [stdout] test src/lib.rs - Undo<'state,TState>::update (line 59) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60d53f49ea60bca9b5aabfacc9cc696f4949f7fa3615e59eddd5b6ac1b2a9a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d53f49ea60bca9b5aabfacc9cc696f4949f7fa3615e59eddd5b6ac1b2a9a57", kill_on_drop: false }`
[INFO] [stdout] 60d53f49ea60bca9b5aabfacc9cc696f4949f7fa3615e59eddd5b6ac1b2a9a57