[INFO] fetching crate persistent-list 0.1.0...
[INFO] testing persistent-list-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate persistent-list 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate persistent-list 0.1.0
[INFO] finished tweaking crates.io crate persistent-list 0.1.0
[INFO] tweaked toml for crates.io crate persistent-list 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate persistent-list 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6aba83fd6f8fae87df60fe765f62d74656fb3a017e46d53db872b78058be0012
[INFO] running `Command { std: "docker" "start" "-a" "6aba83fd6f8fae87df60fe765f62d74656fb3a017e46d53db872b78058be0012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aba83fd6f8fae87df60fe765f62d74656fb3a017e46d53db872b78058be0012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aba83fd6f8fae87df60fe765f62d74656fb3a017e46d53db872b78058be0012", kill_on_drop: false }`
[INFO] [stdout] 6aba83fd6f8fae87df60fe765f62d74656fb3a017e46d53db872b78058be0012
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22f83ed9a02d6a880134340d978dbf766bf2f1ea6701753ba8ef31b258f1c37a
[INFO] running `Command { std: "docker" "start" "-a" "22f83ed9a02d6a880134340d978dbf766bf2f1ea6701753ba8ef31b258f1c37a", kill_on_drop: false }`
[INFO] [stderr]    Compiling persistent-list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "22f83ed9a02d6a880134340d978dbf766bf2f1ea6701753ba8ef31b258f1c37a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f83ed9a02d6a880134340d978dbf766bf2f1ea6701753ba8ef31b258f1c37a", kill_on_drop: false }`
[INFO] [stdout] 22f83ed9a02d6a880134340d978dbf766bf2f1ea6701753ba8ef31b258f1c37a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f1b608bbb27f9e1e958286593074fa3111cb19ab677014b14b1e3d129254912
[INFO] running `Command { std: "docker" "start" "-a" "8f1b608bbb27f9e1e958286593074fa3111cb19ab677014b14b1e3d129254912", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling persistent-list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "8f1b608bbb27f9e1e958286593074fa3111cb19ab677014b14b1e3d129254912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f1b608bbb27f9e1e958286593074fa3111cb19ab677014b14b1e3d129254912", kill_on_drop: false }`
[INFO] [stdout] 8f1b608bbb27f9e1e958286593074fa3111cb19ab677014b14b1e3d129254912
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e46bcdd3c2e2624038f10ee3782c40ac3db98068ad70d65b1e9bbbcb1ea55f86
[INFO] running `Command { std: "docker" "start" "-a" "e46bcdd3c2e2624038f10ee3782c40ac3db98068ad70d65b1e9bbbcb1ea55f86", 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/persistent_list-10dc0310c3a17987)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::list_append ... ok
[INFO] [stdout] test tests::list_front ... ok
[INFO] [stdout] test tests::list_length ... ok
[INFO] [stdout] test tests::list_iterator ... ok
[INFO] [stdout] test tests::list_macro ... ok
[INFO] [stdout] test tests::list_rest ... ok
[INFO] [stdout] test tests::list_skip ... ok
[INFO] [stdout] test tests::list_thread ... ok
[INFO] [stdout] test tests::list_split_append ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.73s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests persistent_list
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/lib.rs - List<E>::clear (line 425) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::contains (line 495) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::rest (line 774) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::push_front (line 567) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::pop_front (line 591) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::append (line 262) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::split_at (line 695) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::iter (line 299) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::front_mut (line 541) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::len (line 382) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::new (line 238) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::front (line 519) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::iter_mut (line 326) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::reverse (line 720) ... ok
[INFO] [stdout] test src/lib.rs - (line 37) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::uncons (line 468) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::is_empty (line 359) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::split_off (line 633) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::unit (line 404) ... ok
[INFO] [stdout] test src/lib.rs - cons (line 211) ... ok
[INFO] [stdout] test src/lib.rs - List<E>::tail (line 819) ... ok
[INFO] [stdout] test src/lib.rs - cons (line 189) ... ok
[INFO] [stdout] test src/lib.rs - list (line 81) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e46bcdd3c2e2624038f10ee3782c40ac3db98068ad70d65b1e9bbbcb1ea55f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46bcdd3c2e2624038f10ee3782c40ac3db98068ad70d65b1e9bbbcb1ea55f86", kill_on_drop: false }`
[INFO] [stdout] e46bcdd3c2e2624038f10ee3782c40ac3db98068ad70d65b1e9bbbcb1ea55f86