[INFO] fetching crate gsrs 0.1.4...
[INFO] checking gsrs-0.1.4 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate gsrs 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gsrs 0.1.4 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gsrs 0.1.4
[INFO] finished tweaking crates.io crate gsrs 0.1.4
[INFO] tweaked toml for crates.io crate gsrs 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6cef0a7daa6cd17259bb99fc872ff9f650a42bbf4213ac1a8f4e36849efdc0b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b6cef0a7daa6cd17259bb99fc872ff9f650a42bbf4213ac1a8f4e36849efdc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6cef0a7daa6cd17259bb99fc872ff9f650a42bbf4213ac1a8f4e36849efdc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6cef0a7daa6cd17259bb99fc872ff9f650a42bbf4213ac1a8f4e36849efdc0b", kill_on_drop: false }`
[INFO] [stdout] b6cef0a7daa6cd17259bb99fc872ff9f650a42bbf4213ac1a8f4e36849efdc0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2509454ee790a4f9063fb56994f3a16f38d2dca6b337eccee57dd413a28fc1a9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2509454ee790a4f9063fb56994f3a16f38d2dca6b337eccee57dd413a28fc1a9", kill_on_drop: false }`
[INFO] [stderr]     Checking gsrs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut srs = SRS::<Test, TestRef>::create_with(
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/test.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut srs = SRS::<_, TestRef<'static>>::create_with(Cell::new(25), |owner| TestRef(owner));
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/test.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let mut srs = SRS::<_, &'static Cell<u8>>::create_with(Cell::new(25), |owner| owner);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.20s
[INFO] running `Command { std: "docker" "inspect" "2509454ee790a4f9063fb56994f3a16f38d2dca6b337eccee57dd413a28fc1a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2509454ee790a4f9063fb56994f3a16f38d2dca6b337eccee57dd413a28fc1a9", kill_on_drop: false }`
[INFO] [stdout] 2509454ee790a4f9063fb56994f3a16f38d2dca6b337eccee57dd413a28fc1a9