[INFO] cloning repository https://github.com/StephenVanWijk/linked-lists-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StephenVanWijk/linked-lists-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephenVanWijk%2Flinked-lists-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephenVanWijk%2Flinked-lists-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef715c0db9c0fba820154a93171c392e7b41b785
[INFO] testing StephenVanWijk/linked-lists-in-rust against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephenVanWijk%2Flinked-lists-in-rust" "/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/StephenVanWijk/linked-lists-in-rust
[INFO] finished tweaking git repo https://github.com/StephenVanWijk/linked-lists-in-rust
[INFO] tweaked toml for git repo https://github.com/StephenVanWijk/linked-lists-in-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/StephenVanWijk/linked-lists-in-rust on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/StephenVanWijk/linked-lists-in-rust 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d73cb766384728e1556e7be25cb77c372231d7bced6f1afda15ba03ba531a132
[INFO] running `Command { std: "docker" "start" "-a" "d73cb766384728e1556e7be25cb77c372231d7bced6f1afda15ba03ba531a132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d73cb766384728e1556e7be25cb77c372231d7bced6f1afda15ba03ba531a132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d73cb766384728e1556e7be25cb77c372231d7bced6f1afda15ba03ba531a132", kill_on_drop: false }`
[INFO] [stdout] d73cb766384728e1556e7be25cb77c372231d7bced6f1afda15ba03ba531a132
[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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17253c785925876351cc716344292a59dab536c0587d95f24ab86798deaac537
[INFO] running `Command { std: "docker" "start" "-a" "17253c785925876351cc716344292a59dab536c0587d95f24ab86798deaac537", kill_on_drop: false }`
[INFO] [stderr]    Compiling bad_safe_doubly_linked_deque v0.1.0 (/opt/rustwide/workdir/bad_safe_doubly_linked_deque)
[INFO] [stderr]    Compiling ok_unsafe_doubly_linked_deque v0.1.0 (/opt/rustwide/workdir/ok_unsafe_doubly_linked_deque)
[INFO] [stderr]    Compiling unsafe_singly_linked_queue v0.1.0 (/opt/rustwide/workdir/unsafe_singly_linked_queue)
[INFO] [stderr]    Compiling persistent_singly_linked_stack v0.1.0 (/opt/rustwide/workdir/persistent_singly_linked_stack)
[INFO] [stderr]    Compiling bad_singly_linked_stack v0.1.0 (/opt/rustwide/workdir/bad_singly_linked_stack)
[INFO] [stderr]    Compiling ok_singly_linked_stack v0.1.0 (/opt/rustwide/workdir/ok_singly_linked_stack)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "17253c785925876351cc716344292a59dab536c0587d95f24ab86798deaac537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17253c785925876351cc716344292a59dab536c0587d95f24ab86798deaac537", kill_on_drop: false }`
[INFO] [stdout] 17253c785925876351cc716344292a59dab536c0587d95f24ab86798deaac537
[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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afb07d54029e92bfcea29b3bd8161c011f1f6e999b30a7d043656a49b2f3cc28
[INFO] running `Command { std: "docker" "start" "-a" "afb07d54029e92bfcea29b3bd8161c011f1f6e999b30a7d043656a49b2f3cc28", kill_on_drop: false }`
[INFO] [stderr]    Compiling bad_safe_doubly_linked_deque v0.1.0 (/opt/rustwide/workdir/bad_safe_doubly_linked_deque)
[INFO] [stderr]    Compiling ok_unsafe_doubly_linked_deque v0.1.0 (/opt/rustwide/workdir/ok_unsafe_doubly_linked_deque)
[INFO] [stderr]    Compiling unsafe_singly_linked_queue v0.1.0 (/opt/rustwide/workdir/unsafe_singly_linked_queue)
[INFO] [stderr]    Compiling ok_singly_linked_stack v0.1.0 (/opt/rustwide/workdir/ok_singly_linked_stack)
[INFO] [stderr]    Compiling persistent_singly_linked_stack v0.1.0 (/opt/rustwide/workdir/persistent_singly_linked_stack)
[INFO] [stderr]    Compiling bad_singly_linked_stack v0.1.0 (/opt/rustwide/workdir/bad_singly_linked_stack)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "afb07d54029e92bfcea29b3bd8161c011f1f6e999b30a7d043656a49b2f3cc28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb07d54029e92bfcea29b3bd8161c011f1f6e999b30a7d043656a49b2f3cc28", kill_on_drop: false }`
[INFO] [stdout] afb07d54029e92bfcea29b3bd8161c011f1f6e999b30a7d043656a49b2f3cc28
[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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b6f0559f806aef6ad8c0074a0981361d9f6550100774e9563c33790cd7d17b7e
[INFO] running `Command { std: "docker" "start" "-a" "b6f0559f806aef6ad8c0074a0981361d9f6550100774e9563c33790cd7d17b7e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/bad_safe_doubly_linked_deque-fb1679ac27de23b2)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/bad_singly_linked_stack-c49f988f3d815cdb)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ok_singly_linked_stack-0cf45103f61bdc79)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ok_unsafe_doubly_linked_deque-e4167cc7e81b575d)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/persistent_singly_linked_stack-a29d57a7b3a27be7)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/unsafe_singly_linked_queue-98d4addb8d70eedf)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b6f0559f806aef6ad8c0074a0981361d9f6550100774e9563c33790cd7d17b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6f0559f806aef6ad8c0074a0981361d9f6550100774e9563c33790cd7d17b7e", kill_on_drop: false }`
[INFO] [stdout] b6f0559f806aef6ad8c0074a0981361d9f6550100774e9563c33790cd7d17b7e