[INFO] cloning repository https://github.com/bamboo-nova/cabocha_rs_package
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bamboo-nova/cabocha_rs_package" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbamboo-nova%2Fcabocha_rs_package", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbamboo-nova%2Fcabocha_rs_package'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1867c3f31bc3b8931e7c5f7a243d962ba7038a17
[INFO] checking bamboo-nova/cabocha_rs_package against master#9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9 for pr-124108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbamboo-nova%2Fcabocha_rs_package" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bamboo-nova/cabocha_rs_package on toolchain 9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bamboo-nova/cabocha_rs_package
[INFO] finished tweaking git repo https://github.com/bamboo-nova/cabocha_rs_package
[INFO] tweaked toml for git repo https://github.com/bamboo-nova/cabocha_rs_package written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bamboo-nova/cabocha_rs_package 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" "+9f432d7b44d5c4ac0ce76fed8315ffac8dcab8f9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking bamboo-nova/cabocha_rs_package against try#2e5b7739e5167b731ad5eb628f04a54f932f1fe2 for pr-124108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbamboo-nova%2Fcabocha_rs_package" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bamboo-nova/cabocha_rs_package on toolchain 2e5b7739e5167b731ad5eb628f04a54f932f1fe2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bamboo-nova/cabocha_rs_package
[INFO] finished tweaking git repo https://github.com/bamboo-nova/cabocha_rs_package
[INFO] tweaked toml for git repo https://github.com/bamboo-nova/cabocha_rs_package written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bamboo-nova/cabocha_rs_package 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" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cabocha v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff468baba090752337bdcf58b65c23da8d2d54825f2ce0c7e8b1b39fa9363f6e
[INFO] running `Command { std: "docker" "start" "-a" "ff468baba090752337bdcf58b65c23da8d2d54825f2ce0c7e8b1b39fa9363f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff468baba090752337bdcf58b65c23da8d2d54825f2ce0c7e8b1b39fa9363f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff468baba090752337bdcf58b65c23da8d2d54825f2ce0c7e8b1b39fa9363f6e", kill_on_drop: false }`
[INFO] [stdout] ff468baba090752337bdcf58b65c23da8d2d54825f2ce0c7e8b1b39fa9363f6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2e5b7739e5167b731ad5eb628f04a54f932f1fe2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9e7261e8a7256dc4e9d7b34aad441e4c45f3883b16ac4b87220d0b567148265
[INFO] running `Command { std: "docker" "start" "-a" "c9e7261e8a7256dc4e9d7b34aad441e4c45f3883b16ac4b87220d0b567148265", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]     Checking cabocha v0.2.0
[INFO] [stderr]     Checking cabocha-package v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `buffer` is never read
[INFO] [stdout]   --> src/cabochalib/morph.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 buffer = Vec::new();
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `buffer` is never read
[INFO] [stdout]   --> src/cabochalib/morph.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 buffer = Vec::new();
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/cabochalib/morph.rs:11:65
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let lines: Vec<_> = result.into_iter().filter(|line| if let line = line { !line.starts_with('*') } else { false }).collect();
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/cabochalib/morph.rs:11:65
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let lines: Vec<_> = result.into_iter().filter(|line| if let line = line { !line.starts_with('*') } else { false }).collect();
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `surface`, `base`, `pos`, and `sub_pos` are never read
[INFO] [stdout]  --> src/cabochalib/morph.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Morph {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 3 |     surface: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     base: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     pos: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     sub_pos: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Morph` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `surface`, `base`, `pos`, and `sub_pos` are never read
[INFO] [stdout]  --> src/cabochalib/morph.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Morph {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 3 |     surface: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     base: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     pos: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     sub_pos: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Morph` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 0.62s
[INFO] running `Command { std: "docker" "inspect" "c9e7261e8a7256dc4e9d7b34aad441e4c45f3883b16ac4b87220d0b567148265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9e7261e8a7256dc4e9d7b34aad441e4c45f3883b16ac4b87220d0b567148265", kill_on_drop: false }`
[INFO] [stdout] c9e7261e8a7256dc4e9d7b34aad441e4c45f3883b16ac4b87220d0b567148265