[INFO] fetching crate checkpwn 0.5.3...
[INFO] checking checkpwn-0.5.3 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate checkpwn 0.5.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate checkpwn 0.5.3 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate checkpwn 0.5.3
[INFO] finished tweaking crates.io crate checkpwn 0.5.3
[INFO] tweaked toml for crates.io crate checkpwn 0.5.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate checkpwn 0.5.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81be867aedd40a3770f2b734eb01e48339a64ffbc6bcb955dcca7d47c5ea1928
[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" "81be867aedd40a3770f2b734eb01e48339a64ffbc6bcb955dcca7d47c5ea1928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81be867aedd40a3770f2b734eb01e48339a64ffbc6bcb955dcca7d47c5ea1928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81be867aedd40a3770f2b734eb01e48339a64ffbc6bcb955dcca7d47c5ea1928", kill_on_drop: false }`
[INFO] [stdout] 81be867aedd40a3770f2b734eb01e48339a64ffbc6bcb955dcca7d47c5ea1928
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32fc9dd6eb6347c96d6f423be75c5b24e52421e7c7673084a3b972145f4df380
[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" "32fc9dd6eb6347c96d6f423be75c5b24e52421e7c7673084a3b972145f4df380", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rpassword v5.0.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking unicode-normalization v0.1.18
[INFO] [stderr]     Checking assert_cmd v1.0.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking ureq v2.1.1
[INFO] [stderr]     Checking checkpwn_lib v0.2.0
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking checkpwn v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/main.rs:90:17
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 overwrite_choice.to_lowercase();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/main.rs:90:17
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 overwrite_choice.to_lowercase();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.56s
[INFO] running `Command { std: "docker" "inspect" "32fc9dd6eb6347c96d6f423be75c5b24e52421e7c7673084a3b972145f4df380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32fc9dd6eb6347c96d6f423be75c5b24e52421e7c7673084a3b972145f4df380", kill_on_drop: false }`
[INFO] [stdout] 32fc9dd6eb6347c96d6f423be75c5b24e52421e7c7673084a3b972145f4df380