[INFO] fetching crate cova-space 0.2.0...
[INFO] testing cova-space-0.2.0 against master#160e7623e8cbbf1feab2b6e2a24733a98c7bde9c for pr-145628
[INFO] extracting crate cova-space 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate cova-space 0.2.0
[INFO] finished tweaking crates.io crate cova-space 0.2.0
[INFO] tweaked toml for crates.io crate cova-space 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cova-space 0.2.0 on toolchain 160e7623e8cbbf1feab2b6e2a24733a98c7bde9c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cova-space 0.2.0 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" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cova-algebra v0.1.2
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfaf975fc6d619656f78071b976006f6833e2eb453bfe4d19220cc4e323bd792
[INFO] running `Command { std: "docker" "start" "-a" "dfaf975fc6d619656f78071b976006f6833e2eb453bfe4d19220cc4e323bd792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfaf975fc6d619656f78071b976006f6833e2eb453bfe4d19220cc4e323bd792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfaf975fc6d619656f78071b976006f6833e2eb453bfe4d19220cc4e323bd792", kill_on_drop: false }`
[INFO] [stdout] dfaf975fc6d619656f78071b976006f6833e2eb453bfe4d19220cc4e323bd792
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6d658e3ba28da540bc9c7fa51f142f351e145dd417157e5cfa0dbdf18a68e47
[INFO] running `Command { std: "docker" "start" "-a" "b6d658e3ba28da540bc9c7fa51f142f351e145dd417157e5cfa0dbdf18a68e47", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling cova-algebra v0.1.2
[INFO] [stderr]    Compiling cova-space v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/complexes/mod.rs:1392:31
[INFO] [stdout]      |
[INFO] [stdout] 1392 |   fn boundary<R: Ring + Copy>(&self, item: &Self::Item) -> Chain<Self, R> {
[INFO] [stdout]      |                               ^^^^^                        ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                               |
[INFO] [stdout]      |                               the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]      = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1392 |   fn boundary<R: Ring + Copy>(&self, item: &Self::Item) -> Chain<'_, Self, R> {
[INFO] [stdout]      |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `Command { std: "docker" "inspect" "b6d658e3ba28da540bc9c7fa51f142f351e145dd417157e5cfa0dbdf18a68e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d658e3ba28da540bc9c7fa51f142f351e145dd417157e5cfa0dbdf18a68e47", kill_on_drop: false }`
[INFO] [stdout] b6d658e3ba28da540bc9c7fa51f142f351e145dd417157e5cfa0dbdf18a68e47
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65d44ef910a74080f267cbe6505ac617a2ba5793db4351e9a57bf5e1bfb3892f
[INFO] running `Command { std: "docker" "start" "-a" "65d44ef910a74080f267cbe6505ac617a2ba5793db4351e9a57bf5e1bfb3892f", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `cova-algebra v0.1.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `cova-algebra v0.1.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cova-algebra-0.1.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "65d44ef910a74080f267cbe6505ac617a2ba5793db4351e9a57bf5e1bfb3892f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65d44ef910a74080f267cbe6505ac617a2ba5793db4351e9a57bf5e1bfb3892f", kill_on_drop: false }`
[INFO] [stdout] 65d44ef910a74080f267cbe6505ac617a2ba5793db4351e9a57bf5e1bfb3892f