[INFO] fetching crate lecturn 0.1.9...
[INFO] building lecturn-0.1.9 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate lecturn 0.1.9 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate lecturn 0.1.9 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lecturn 0.1.9
[INFO] finished tweaking crates.io crate lecturn 0.1.9
[INFO] tweaked toml for crates.io crate lecturn 0.1.9 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate lecturn 0.1.9 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f336c248e6d2f54bc02c1bf9a07dab1b7c312bbf1404b11ded997b7fec2812b
[INFO] running `Command { std: "docker" "start" "-a" "8f336c248e6d2f54bc02c1bf9a07dab1b7c312bbf1404b11ded997b7fec2812b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f336c248e6d2f54bc02c1bf9a07dab1b7c312bbf1404b11ded997b7fec2812b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f336c248e6d2f54bc02c1bf9a07dab1b7c312bbf1404b11ded997b7fec2812b", kill_on_drop: false }`
[INFO] [stdout] 8f336c248e6d2f54bc02c1bf9a07dab1b7c312bbf1404b11ded997b7fec2812b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2458990f26feb3024294c44324369738bd654494e8cdd4cedad4da167153175c
[INFO] running `Command { std: "docker" "start" "-a" "2458990f26feb3024294c44324369738bd654494e8cdd4cedad4da167153175c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling lecturn v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/editor.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let mut offset = &mut self.offset;
[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/commands.rs:28:28
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 function: |mut editor, _params, forced| {
[INFO] [stdout]    |                            ----^^^^^^
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "2458990f26feb3024294c44324369738bd654494e8cdd4cedad4da167153175c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2458990f26feb3024294c44324369738bd654494e8cdd4cedad4da167153175c", kill_on_drop: false }`
[INFO] [stdout] 2458990f26feb3024294c44324369738bd654494e8cdd4cedad4da167153175c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 935cdca8b7ef35df79b199295ca446754c545b3d4d658710e714b7a105566751
[INFO] running `Command { std: "docker" "start" "-a" "935cdca8b7ef35df79b199295ca446754c545b3d4d658710e714b7a105566751", kill_on_drop: false }`
[INFO] [stderr]    Compiling lecturn v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/editor.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let mut offset = &mut self.offset;
[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/commands.rs:28:28
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 function: |mut editor, _params, forced| {
[INFO] [stdout]    |                            ----^^^^^^
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "935cdca8b7ef35df79b199295ca446754c545b3d4d658710e714b7a105566751", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "935cdca8b7ef35df79b199295ca446754c545b3d4d658710e714b7a105566751", kill_on_drop: false }`
[INFO] [stdout] 935cdca8b7ef35df79b199295ca446754c545b3d4d658710e714b7a105566751