[INFO] fetching crate difflib 0.4.0...
[INFO] checking difflib-0.4.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate difflib 0.4.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate difflib 0.4.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate difflib 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate difflib 0.4.0
[INFO] tweaked toml for crates.io crate difflib 0.4.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6500e9021b3a9d884262c5fe14603f3bb89e92c7279aacdc798dfedd7d6a4339
[INFO] running `Command { std: "docker" "start" "-a" "6500e9021b3a9d884262c5fe14603f3bb89e92c7279aacdc798dfedd7d6a4339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6500e9021b3a9d884262c5fe14603f3bb89e92c7279aacdc798dfedd7d6a4339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6500e9021b3a9d884262c5fe14603f3bb89e92c7279aacdc798dfedd7d6a4339", kill_on_drop: false }`
[INFO] [stdout] 6500e9021b3a9d884262c5fe14603f3bb89e92c7279aacdc798dfedd7d6a4339
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5a58ca8cae46c30587150e5abbe80b0cba4fe945797518b6e9a11a63869eb1a
[INFO] running `Command { std: "docker" "start" "-a" "d5a58ca8cae46c30587150e5abbe80b0cba4fe945797518b6e9a11a63869eb1a", kill_on_drop: false }`
[INFO] [stderr]     Checking difflib v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]    --> src/differ.rs:271:52
[INFO] [stdout]     |
[INFO] [stdout] 271 |         first_tags = first_tags.split_at(common).1.trim_right();
[INFO] [stdout]     |                                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 271 |         first_tags = first_tags.split_at(common).1.trim_end();
[INFO] [stdout]     |                                                    ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]    --> src/differ.rs:272:54
[INFO] [stdout]     |
[INFO] [stdout] 272 |         second_tags = second_tags.split_at(common).1.trim_right();
[INFO] [stdout]     |                                                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 272 |         second_tags = second_tags.split_at(common).1.trim_end();
[INFO] [stdout]     |                                                      ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]    --> src/differ.rs:271:52
[INFO] [stdout]     |
[INFO] [stdout] 271 |         first_tags = first_tags.split_at(common).1.trim_right();
[INFO] [stdout]     |                                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 271 |         first_tags = first_tags.split_at(common).1.trim_end();
[INFO] [stdout]     |                                                    ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]    --> src/differ.rs:272:54
[INFO] [stdout]     |
[INFO] [stdout] 272 |         second_tags = second_tags.split_at(common).1.trim_right();
[INFO] [stdout]     |                                                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]     |
[INFO] [stdout] 272 |         second_tags = second_tags.split_at(common).1.trim_end();
[INFO] [stdout]     |                                                      ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sequencematcher.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |             let mut counter = second_sequence_elements
[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]    --> src/sequencematcher.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |             let mut counter = second_sequence_elements
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "d5a58ca8cae46c30587150e5abbe80b0cba4fe945797518b6e9a11a63869eb1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a58ca8cae46c30587150e5abbe80b0cba4fe945797518b6e9a11a63869eb1a", kill_on_drop: false }`
[INFO] [stdout] d5a58ca8cae46c30587150e5abbe80b0cba4fe945797518b6e9a11a63869eb1a
[INFO] checking difflib-0.4.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-2
[INFO] extracting crate difflib 0.4.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate difflib 0.4.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate difflib 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate difflib 0.4.0
[INFO] tweaked toml for crates.io crate difflib 0.4.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 289c9ed0c554dbcb73bd36225f2153769081a0f3e7ca9d77e70b57e0a24ee557
[INFO] running `Command { std: "docker" "start" "-a" "289c9ed0c554dbcb73bd36225f2153769081a0f3e7ca9d77e70b57e0a24ee557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "289c9ed0c554dbcb73bd36225f2153769081a0f3e7ca9d77e70b57e0a24ee557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289c9ed0c554dbcb73bd36225f2153769081a0f3e7ca9d77e70b57e0a24ee557", kill_on_drop: false }`
[INFO] [stdout] 289c9ed0c554dbcb73bd36225f2153769081a0f3e7ca9d77e70b57e0a24ee557
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58962d810f59f7f429fab2dfc470da51252edcba3ee2bb678db9e323db8429b7
[INFO] running `Command { std: "docker" "start" "-a" "58962d810f59f7f429fab2dfc470da51252edcba3ee2bb678db9e323db8429b7", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "58962d810f59f7f429fab2dfc470da51252edcba3ee2bb678db9e323db8429b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58962d810f59f7f429fab2dfc470da51252edcba3ee2bb678db9e323db8429b7", kill_on_drop: false }`
[INFO] [stdout] 58962d810f59f7f429fab2dfc470da51252edcba3ee2bb678db9e323db8429b7