[INFO] fetching crate stackstack 0.3.0...
[INFO] testing stackstack-0.3.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate stackstack 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate stackstack 0.3.0
[INFO] finished tweaking crates.io crate stackstack 0.3.0
[INFO] tweaked toml for crates.io crate stackstack 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stackstack 0.3.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.13.0 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b6f1f829c1d5b62f9fd3ee11a59a9093a9035e92b0f2ca0946274bf6097669b
[INFO] running `Command { std: "docker" "start" "-a" "4b6f1f829c1d5b62f9fd3ee11a59a9093a9035e92b0f2ca0946274bf6097669b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b6f1f829c1d5b62f9fd3ee11a59a9093a9035e92b0f2ca0946274bf6097669b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6f1f829c1d5b62f9fd3ee11a59a9093a9035e92b0f2ca0946274bf6097669b", kill_on_drop: false }`
[INFO] [stdout] 4b6f1f829c1d5b62f9fd3ee11a59a9093a9035e92b0f2ca0946274bf6097669b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5be685972474784eb5d4abb8a65cca3f9d30a2708a456cc624f6bbdabca3ac6
[INFO] running `Command { std: "docker" "start" "-a" "a5be685972474784eb5d4abb8a65cca3f9d30a2708a456cc624f6bbdabca3ac6", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "a5be685972474784eb5d4abb8a65cca3f9d30a2708a456cc624f6bbdabca3ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5be685972474784eb5d4abb8a65cca3f9d30a2708a456cc624f6bbdabca3ac6", kill_on_drop: false }`
[INFO] [stdout] a5be685972474784eb5d4abb8a65cca3f9d30a2708a456cc624f6bbdabca3ac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d8fd3ee37422b6b4de13dcc853bb2d482d0419b63193f273f32d445987acc7b
[INFO] running `Command { std: "docker" "start" "-a" "9d8fd3ee37422b6b4de13dcc853bb2d482d0419b63193f273f32d445987acc7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling stackstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.77s
[INFO] running `Command { std: "docker" "inspect" "9d8fd3ee37422b6b4de13dcc853bb2d482d0419b63193f273f32d445987acc7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d8fd3ee37422b6b4de13dcc853bb2d482d0419b63193f273f32d445987acc7b", kill_on_drop: false }`
[INFO] [stdout] 9d8fd3ee37422b6b4de13dcc853bb2d482d0419b63193f273f32d445987acc7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] df68aee0b0cbe7002e1e1a25a278b5026a75ca7adb869446a515095f5f1fea11
[INFO] running `Command { std: "docker" "start" "-a" "df68aee0b0cbe7002e1e1a25a278b5026a75ca7adb869446a515095f5f1fea11", 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/stackstack-75f28691d087355b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::rev ... ok
[INFO] [stdout] test tests::on_chained ... ok
[INFO] [stdout] test tests::get ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stackstack
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::new (line 171) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::get (line 235) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::split_last (line 297) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::last_mut (line 284) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::chained (line 378) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::len (line 215) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::pushed (line 198) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::is_empty (line 227) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::of (line 182) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::with (line 338) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::first (line 262) ... ok
[INFO] [stdout] test src/lib.rs - stack (line 456) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::last (line 271) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::with_all (line 353) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::iter (line 324) ... ok
[INFO] [stdout] test src/lib.rs - Stack<'a,T>::into_split_last (line 310) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.84s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "df68aee0b0cbe7002e1e1a25a278b5026a75ca7adb869446a515095f5f1fea11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df68aee0b0cbe7002e1e1a25a278b5026a75ca7adb869446a515095f5f1fea11", kill_on_drop: false }`
[INFO] [stdout] df68aee0b0cbe7002e1e1a25a278b5026a75ca7adb869446a515095f5f1fea11