[INFO] fetching crate propulsor 0.1.0...
[INFO] testing propulsor-0.1.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate propulsor 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate propulsor 0.1.0
[INFO] finished tweaking crates.io crate propulsor 0.1.0
[INFO] tweaked toml for crates.io crate propulsor 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate propulsor 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate propulsor 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.139
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 975377fa612439dd5de301e40d6bfb054f170106761e9828a99da69c22c7cc92
[INFO] running `Command { std: "docker" "start" "-a" "975377fa612439dd5de301e40d6bfb054f170106761e9828a99da69c22c7cc92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "975377fa612439dd5de301e40d6bfb054f170106761e9828a99da69c22c7cc92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975377fa612439dd5de301e40d6bfb054f170106761e9828a99da69c22c7cc92", kill_on_drop: false }`
[INFO] [stdout] 975377fa612439dd5de301e40d6bfb054f170106761e9828a99da69c22c7cc92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea90c18d961c9b2eb5c017a27b0e393ecd641c7901dc9ea6985b8496b045aead
[INFO] running `Command { std: "docker" "start" "-a" "ea90c18d961c9b2eb5c017a27b0e393ecd641c7901dc9ea6985b8496b045aead", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling serde_json v1.0.139
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling propulsor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.13s
[INFO] running `Command { std: "docker" "inspect" "ea90c18d961c9b2eb5c017a27b0e393ecd641c7901dc9ea6985b8496b045aead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea90c18d961c9b2eb5c017a27b0e393ecd641c7901dc9ea6985b8496b045aead", kill_on_drop: false }`
[INFO] [stdout] ea90c18d961c9b2eb5c017a27b0e393ecd641c7901dc9ea6985b8496b045aead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc4ea54e1381117d1a0835c12c53c1ca384e9b2761ccc98d3afef12af78da412
[INFO] running `Command { std: "docker" "start" "-a" "bc4ea54e1381117d1a0835c12c53c1ca384e9b2761ccc98d3afef12af78da412", kill_on_drop: false }`
[INFO] [stderr]    Compiling propulsor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "bc4ea54e1381117d1a0835c12c53c1ca384e9b2761ccc98d3afef12af78da412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4ea54e1381117d1a0835c12c53c1ca384e9b2761ccc98d3afef12af78da412", kill_on_drop: false }`
[INFO] [stdout] bc4ea54e1381117d1a0835c12c53c1ca384e9b2761ccc98d3afef12af78da412
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d0b8ab48e64fbb23ed9f69a84e75c21c77f349d2c9b169cd176c3c1ab5c1feaa
[INFO] running `Command { std: "docker" "start" "-a" "d0b8ab48e64fbb23ed9f69a84e75c21c77f349d2c9b169cd176c3c1ab5c1feaa", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/propulsor-aef1fb1d7febd153)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test property::file::tests::write_foo ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- property::file::tests::write_foo stdout ----
[INFO] [stdout] file foo has content
[INFO] [stdout] Error: IoError("Read-only file system (os error 30)")
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     property::file::tests::write_foo
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "d0b8ab48e64fbb23ed9f69a84e75c21c77f349d2c9b169cd176c3c1ab5c1feaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b8ab48e64fbb23ed9f69a84e75c21c77f349d2c9b169cd176c3c1ab5c1feaa", kill_on_drop: false }`
[INFO] [stdout] d0b8ab48e64fbb23ed9f69a84e75c21c77f349d2c9b169cd176c3c1ab5c1feaa
