[INFO] fetching crate flic 0.1.6...
[INFO] checking flic-0.1.6 against master#c0b64d97beebb09325b5587abed39f4f1621026f for pr-80763
[INFO] extracting crate flic 0.1.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate flic 0.1.6 on toolchain c0b64d97beebb09325b5587abed39f4f1621026f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flic 0.1.6
[INFO] finished tweaking crates.io crate flic 0.1.6
[INFO] tweaked toml for crates.io crate flic 0.1.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3312f2e884710be614322a8aba4eb54c835aee9901889b8e19a43035e45c745
[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" "e3312f2e884710be614322a8aba4eb54c835aee9901889b8e19a43035e45c745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3312f2e884710be614322a8aba4eb54c835aee9901889b8e19a43035e45c745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3312f2e884710be614322a8aba4eb54c835aee9901889b8e19a43035e45c745", kill_on_drop: false }`
[INFO] [stdout] e3312f2e884710be614322a8aba4eb54c835aee9901889b8e19a43035e45c745
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+c0b64d97beebb09325b5587abed39f4f1621026f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e74d942ab28c798e01a265c78f0af274b6e1acab1d4c643292ef70e09d3e9560
[INFO] running `Command { std: "docker" "start" "-a" "e74d942ab28c798e01a265c78f0af274b6e1acab1d4c643292ef70e09d3e9560", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking sdl2-sys v0.30.0
[INFO] [stderr]     Checking flic v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/codec/codec007.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut row = &mut dst.buf[start..end];
[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/codec/codec015.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut row = &mut row[start..end];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking sdl2 v0.30.0
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/codec/codec007.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut row = &mut dst.buf[start..end];
[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/codec/codec015.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut row = &mut row[start..end];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.30s
[INFO] running `Command { std: "docker" "inspect" "e74d942ab28c798e01a265c78f0af274b6e1acab1d4c643292ef70e09d3e9560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e74d942ab28c798e01a265c78f0af274b6e1acab1d4c643292ef70e09d3e9560", kill_on_drop: false }`
[INFO] [stdout] e74d942ab28c798e01a265c78f0af274b6e1acab1d4c643292ef70e09d3e9560