[INFO] fetching crate chamkho 0.3.0...
[INFO] checking chamkho-0.3.0 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate chamkho 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate chamkho 0.3.0 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chamkho 0.3.0
[INFO] finished tweaking crates.io crate chamkho 0.3.0
[INFO] tweaked toml for crates.io crate chamkho 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ansi_term v0.6.3
[INFO] [stderr]   Downloaded strsim v0.4.1
[INFO] [stderr]   Downloaded clap v1.3.2
[INFO] [stderr]   Downloaded yaml-rust v0.2.2
[INFO] [stderr]   Downloaded wordcut-engine v0.1.1
[INFO] [stderr]   Downloaded prefixtree v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88478892847b99aecd10c4ac9b43bf3063f723524df159c8d99fba7e25c041b8
[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" "88478892847b99aecd10c4ac9b43bf3063f723524df159c8d99fba7e25c041b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88478892847b99aecd10c4ac9b43bf3063f723524df159c8d99fba7e25c041b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88478892847b99aecd10c4ac9b43bf3063f723524df159c8d99fba7e25c041b8", kill_on_drop: false }`
[INFO] [stdout] 88478892847b99aecd10c4ac9b43bf3063f723524df159c8d99fba7e25c041b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] 87a40b359fd7ddcb1331ab10f8b3255ae7be3b6165a519be77e529927eb3c761
[INFO] running `Command { std: "docker" "start" "-a" "87a40b359fd7ddcb1331ab10f8b3255ae7be3b6165a519be77e529927eb3c761", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking prefixtree v0.1.3
[INFO] [stderr]     Checking strsim v0.4.1
[INFO] [stderr]     Checking ansi_term v0.6.3
[INFO] [stderr]     Checking yaml-rust v0.2.2
[INFO] [stderr]     Checking wordcut-engine v0.1.1
[INFO] [stderr]     Checking clap v1.3.2
[INFO] [stderr]     Checking chamkho v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/cli.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 line.trim_right_matches('\n').to_string()
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/cli.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 line.trim_right_matches('\n').to_string()
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[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 4.37s
[INFO] running `Command { std: "docker" "inspect" "87a40b359fd7ddcb1331ab10f8b3255ae7be3b6165a519be77e529927eb3c761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87a40b359fd7ddcb1331ab10f8b3255ae7be3b6165a519be77e529927eb3c761", kill_on_drop: false }`
[INFO] [stdout] 87a40b359fd7ddcb1331ab10f8b3255ae7be3b6165a519be77e529927eb3c761