[INFO] fetching crate mutcursor 0.4.0...
[INFO] testing mutcursor-0.4.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate mutcursor 0.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mutcursor 0.4.0
[INFO] finished tweaking crates.io crate mutcursor 0.4.0
[INFO] tweaked toml for crates.io crate mutcursor 0.4.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutcursor 0.4.0 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 2 packages to latest compatible versions
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maybe-dangling v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] defadaace7b9781c319429d46467702958ed60d76c79048e96f43a90d87ab1c9
[INFO] running `Command { std: "docker" "start" "-a" "defadaace7b9781c319429d46467702958ed60d76c79048e96f43a90d87ab1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "defadaace7b9781c319429d46467702958ed60d76c79048e96f43a90d87ab1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "defadaace7b9781c319429d46467702958ed60d76c79048e96f43a90d87ab1c9", kill_on_drop: false }`
[INFO] [stdout] defadaace7b9781c319429d46467702958ed60d76c79048e96f43a90d87ab1c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 74d550bc885b09a27471aecea8bb73ed4d5ccc82022c8f3df0b256d1ebcd2adc
[INFO] running `Command { std: "docker" "start" "-a" "74d550bc885b09a27471aecea8bb73ed4d5ccc82022c8f3df0b256d1ebcd2adc", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling maybe-dangling v0.1.1
[INFO] [stderr]    Compiling mutcursor v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "74d550bc885b09a27471aecea8bb73ed4d5ccc82022c8f3df0b256d1ebcd2adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d550bc885b09a27471aecea8bb73ed4d5ccc82022c8f3df0b256d1ebcd2adc", kill_on_drop: false }`
[INFO] [stdout] 74d550bc885b09a27471aecea8bb73ed4d5ccc82022c8f3df0b256d1ebcd2adc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 16fbb14af1e1fe2a82ad387281de9cc785da4e06c4445e65a8ea8833b119dab0
[INFO] running `Command { std: "docker" "start" "-a" "16fbb14af1e1fe2a82ad387281de9cc785da4e06c4445e65a8ea8833b119dab0", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutcursor v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "16fbb14af1e1fe2a82ad387281de9cc785da4e06c4445e65a8ea8833b119dab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16fbb14af1e1fe2a82ad387281de9cc785da4e06c4445e65a8ea8833b119dab0", kill_on_drop: false }`
[INFO] [stdout] 16fbb14af1e1fe2a82ad387281de9cc785da4e06c4445e65a8ea8833b119dab0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9736852def59020702e7f1a62d1956248ba2dbaeb3578090b57ff58790ba425b
[INFO] running `Command { std: "docker" "start" "-a" "9736852def59020702e7f1a62d1956248ba2dbaeb3578090b57ff58790ba425b", 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/mutcursor-4ef91ec880989f5d)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test mut_cursor_vec::test::basics_vec ... ok
[INFO] [stdout] test mut_cursor_vec::test::miri_tagging_issue ... ok
[INFO] [stdout] test rooted_vec::test::rooted_vec_basics ... ok
[INFO] [stdout] test test::basics ... ok
[INFO] [stdout] test test::test_variance ... ok
[INFO] [stdout] test test::try_to_alias_mut_with_advance ... ok
[INFO] [stdout] test test::try_to_escape_map_closure ... ok
[INFO] [stdout] test rooted_vec::test::rooted_vec_multi_thread_test ... ok
[INFO] [stdout] test test::multi_thread_test ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mutcursor
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 78) ... ignored
[INFO] [stdout] test src/rooted_vec.rs - rooted_vec::MutCursorRootedVec (line 44) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/unique.rs - unique (line 15) ... ok
[INFO] [stdout] test src/lib.rs - MutCursor<'root,T,N>::try_map_into_mut (line 138) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9736852def59020702e7f1a62d1956248ba2dbaeb3578090b57ff58790ba425b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9736852def59020702e7f1a62d1956248ba2dbaeb3578090b57ff58790ba425b", kill_on_drop: false }`
[INFO] [stdout] 9736852def59020702e7f1a62d1956248ba2dbaeb3578090b57ff58790ba425b