[INFO] fetching crate chrono 0.4.19...
[INFO] testing chrono-0.4.19 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate chrono 0.4.19 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate chrono 0.4.19 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chrono 0.4.19
[INFO] finished tweaking crates.io crate chrono 0.4.19
[INFO] tweaked toml for crates.io crate chrono 0.4.19 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0e0d3a4be224e72bcbcd4d15d2fbb9d199ad8eded03a41db19d516f0004e89e
[INFO] running `Command { std: "docker" "start" "-a" "e0e0d3a4be224e72bcbcd4d15d2fbb9d199ad8eded03a41db19d516f0004e89e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0e0d3a4be224e72bcbcd4d15d2fbb9d199ad8eded03a41db19d516f0004e89e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e0d3a4be224e72bcbcd4d15d2fbb9d199ad8eded03a41db19d516f0004e89e", kill_on_drop: false }`
[INFO] [stdout] e0e0d3a4be224e72bcbcd4d15d2fbb9d199ad8eded03a41db19d516f0004e89e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7f51551c0e55134193134834d0d0dd8ec5b6ec692f853d4eb43f96f7240efbb
[INFO] running `Command { std: "docker" "start" "-a" "c7f51551c0e55134193134834d0d0dd8ec5b6ec692f853d4eb43f96f7240efbb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19 (/opt/rustwide/workdir)
[INFO] [stdout] error: field is never read: `locale`
[INFO] [stdout]    --> src/format/mod.rs:729:5
[INFO] [stdout]     |
[INFO] [stdout] 729 |     locale: Option<Locale>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:417:9
[INFO] [stdout]     |
[INFO] [stdout] 417 | #![deny(dead_code)]
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chrono` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c7f51551c0e55134193134834d0d0dd8ec5b6ec692f853d4eb43f96f7240efbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7f51551c0e55134193134834d0d0dd8ec5b6ec692f853d4eb43f96f7240efbb", kill_on_drop: false }`
[INFO] [stdout] c7f51551c0e55134193134834d0d0dd8ec5b6ec692f853d4eb43f96f7240efbb