[INFO] fetching crate once 0.3.4...
[INFO] testing once-0.3.4 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate once 0.3.4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate once 0.3.4 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate once 0.3.4
[INFO] finished tweaking crates.io crate once 0.3.4
[INFO] tweaked toml for crates.io crate once 0.3.4 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cc8d9c87c9813eb72f47ab2a224d6ff63ed084b775ab7b0e493655fb9067521
[INFO] running `Command { std: "docker" "start" "-a" "5cc8d9c87c9813eb72f47ab2a224d6ff63ed084b775ab7b0e493655fb9067521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cc8d9c87c9813eb72f47ab2a224d6ff63ed084b775ab7b0e493655fb9067521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cc8d9c87c9813eb72f47ab2a224d6ff63ed084b775ab7b0e493655fb9067521", kill_on_drop: false }`
[INFO] [stdout] 5cc8d9c87c9813eb72f47ab2a224d6ff63ed084b775ab7b0e493655fb9067521
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d718185a531321b2bec99eea9a0abbf5c4b87bf55a3e220d7b1072caa239285
[INFO] running `Command { std: "docker" "start" "-a" "5d718185a531321b2bec99eea9a0abbf5c4b87bf55a3e220d7b1072caa239285", kill_on_drop: false }`
[INFO] [stderr]    Compiling once v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "5d718185a531321b2bec99eea9a0abbf5c4b87bf55a3e220d7b1072caa239285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d718185a531321b2bec99eea9a0abbf5c4b87bf55a3e220d7b1072caa239285", kill_on_drop: false }`
[INFO] [stdout] 5d718185a531321b2bec99eea9a0abbf5c4b87bf55a3e220d7b1072caa239285
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d7d10a32058ccadb907dac3bf0d20d544244779d81087579bf84a3d00401510
[INFO] running `Command { std: "docker" "start" "-a" "7d7d10a32058ccadb907dac3bf0d20d544244779d81087579bf84a3d00401510", kill_on_drop: false }`
[INFO] [stderr]    Compiling once v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "7d7d10a32058ccadb907dac3bf0d20d544244779d81087579bf84a3d00401510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d7d10a32058ccadb907dac3bf0d20d544244779d81087579bf84a3d00401510", kill_on_drop: false }`
[INFO] [stdout] 7d7d10a32058ccadb907dac3bf0d20d544244779d81087579bf84a3d00401510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01d3ce5b5deba3571e44473bb3c6d9aa8679c7ab22344bbbaffbcf69cf3a162a
[INFO] running `Command { std: "docker" "start" "-a" "01d3ce5b5deba3571e44473bb3c6d9aa8679c7ab22344bbbaffbcf69cf3a162a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/once-83425a6a3977df19)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_hygiene1 ... ok
[INFO] [stdout] test test_run_once ... ok
[INFO] [stdout] test test_hygiene2 ... ok
[INFO] [stdout] test test_run_once_different_fns ... ok
[INFO] [stderr]    Doc-tests once
[INFO] [stdout] test test_run_twice - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - assert_has_not_been_called (line 36) ... ok
[INFO] [stdout] test src/lib.rs - assert_has_not_been_called (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01d3ce5b5deba3571e44473bb3c6d9aa8679c7ab22344bbbaffbcf69cf3a162a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01d3ce5b5deba3571e44473bb3c6d9aa8679c7ab22344bbbaffbcf69cf3a162a", kill_on_drop: false }`
[INFO] [stdout] 01d3ce5b5deba3571e44473bb3c6d9aa8679c7ab22344bbbaffbcf69cf3a162a