[INFO] cloning repository https://github.com/derekdshaw/git_dag_analyzer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derekdshaw/git_dag_analyzer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdshaw%2Fgit_dag_analyzer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdshaw%2Fgit_dag_analyzer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 012c8e2db97059e455552952f89b4480c264cd78
[INFO] checking derekdshaw/git_dag_analyzer against master#fe55364329579d361b1ab565728bc033a7dba07e for pr-146013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdshaw%2Fgit_dag_analyzer" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/derekdshaw/git_dag_analyzer
[INFO] finished tweaking git repo https://github.com/derekdshaw/git_dag_analyzer
[INFO] tweaked toml for git repo https://github.com/derekdshaw/git_dag_analyzer written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/derekdshaw/git_dag_analyzer on toolchain fe55364329579d361b1ab565728bc033a7dba07e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe55364329579d361b1ab565728bc033a7dba07e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/derekdshaw/git_dag_analyzer 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" "+fe55364329579d361b1ab565728bc033a7dba07e" "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-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fe55364329579d361b1ab565728bc033a7dba07e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd72148da4fc38a4ac2fe2e11b1840bdce20d4a9c98647a28973414013999e01
[INFO] running `Command { std: "docker" "start" "-a" "fd72148da4fc38a4ac2fe2e11b1840bdce20d4a9c98647a28973414013999e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd72148da4fc38a4ac2fe2e11b1840bdce20d4a9c98647a28973414013999e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd72148da4fc38a4ac2fe2e11b1840bdce20d4a9c98647a28973414013999e01", kill_on_drop: false }`
[INFO] [stdout] fd72148da4fc38a4ac2fe2e11b1840bdce20d4a9c98647a28973414013999e01
[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=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" "+fe55364329579d361b1ab565728bc033a7dba07e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f18bd429d00542b52ef79a6d8349ced8f67b0674510cc268c23684b4500ac247
[INFO] running `Command { std: "docker" "start" "-a" "f18bd429d00542b52ef79a6d8349ced8f67b0674510cc268c23684b4500ac247", kill_on_drop: false }`
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking clap_builder v4.5.19
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling cc v1.1.28
[INFO] [stderr]    Compiling libz-sys v1.1.20
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling libssh2-sys v0.3.0
[INFO] [stderr]    Compiling libgit2-sys v0.18.2+1.9.1
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.45.1
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking zerovec v0.11.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking clap v4.5.19
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking git2 v0.20.2
[INFO] [stderr]     Checking git_dag_analyzer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `read` found for enum `Option<T>` in the current scope
[INFO] [stdout]    --> src/object_collection.rs:211:62
[INFO] [stdout]     |
[INFO] [stdout] 211 |         let retrieved_commit = container.commits().get(hash).read().unwrap();
[INFO] [stdout]     |                                                              ^^^^ method not found in `Option<&std::sync::RwLock<commit::Commit>>`
[INFO] [stdout]     |
[INFO] [stdout] note: the method `read` exists on the type `&std::sync::RwLock<commit::Commit>`
[INFO] [stdout]    --> /rustc/fe55364329579d361b1ab565728bc033a7dba07e/library/std/src/sync/poison/rwlock.rs:392:5
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `&std::sync::RwLock<commit::Commit>` value, panicking if the value is an `Option::None`
[INFO] [stdout]     |
[INFO] [stdout] 211 |         let retrieved_commit = container.commits().get(hash).expect("REASON").read().unwrap();
[INFO] [stdout]     |                                                             +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `git_dag_analyzer` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f18bd429d00542b52ef79a6d8349ced8f67b0674510cc268c23684b4500ac247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f18bd429d00542b52ef79a6d8349ced8f67b0674510cc268c23684b4500ac247", kill_on_drop: false }`
[INFO] [stdout] f18bd429d00542b52ef79a6d8349ced8f67b0674510cc268c23684b4500ac247