[INFO] cloning repository https://github.com/jamagin/silkybear
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamagin/silkybear" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamagin%2Fsilkybear", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamagin%2Fsilkybear'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78440154ac875e1bd962545c75f269dfa8ac224b
[INFO] checking jamagin/silkybear against try#cd420d8bda33494ba3cc45048d5f067484a32b94 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamagin%2Fsilkybear" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-6-tc2/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[INFO] checking jamagin/silkybear against try#cd420d8bda33494ba3cc45048d5f067484a32b94 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamagin%2Fsilkybear" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamagin/silkybear on toolchain cd420d8bda33494ba3cc45048d5f067484a32b94
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jamagin/silkybear
[INFO] finished tweaking git repo https://github.com/jamagin/silkybear
[INFO] tweaked toml for git repo https://github.com/jamagin/silkybear written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jamagin/silkybear 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" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc6a3f46f4e9d8c51c0aa631764cc3158fc2010d2f583cbd9c997d8c4fda41cc
[INFO] running `Command { std: "docker" "start" "-a" "fc6a3f46f4e9d8c51c0aa631764cc3158fc2010d2f583cbd9c997d8c4fda41cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc6a3f46f4e9d8c51c0aa631764cc3158fc2010d2f583cbd9c997d8c4fda41cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6a3f46f4e9d8c51c0aa631764cc3158fc2010d2f583cbd9c997d8c4fda41cc", kill_on_drop: false }`
[INFO] [stdout] fc6a3f46f4e9d8c51c0aa631764cc3158fc2010d2f583cbd9c997d8c4fda41cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12b2a48357505fe6c4aecf04b0cc2e0abc798d379a4cb35b7bc8c58c6bdb50d9
[INFO] running `Command { std: "docker" "start" "-a" "12b2a48357505fe6c4aecf04b0cc2e0abc798d379a4cb35b7bc8c58c6bdb50d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking elf v0.7.4
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking fork v0.1.23
[INFO] [stderr]     Checking exec v0.3.1
[INFO] [stderr]     Checking silkybear v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `text_shdr_index` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut text_shdr_index = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_text_shdr_index` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strtab`
[INFO] [stdout]   --> src/main.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (symtab, strtab) = (common.symtab.expect("symbols not found"), common.symtab_strs.expect("symbols string table not found"));
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_strtab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `text_shdr_index` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut text_shdr_index = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_text_shdr_index` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strtab`
[INFO] [stdout]   --> src/main.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (symtab, strtab) = (common.symtab.expect("symbols not found"), common.symtab_strs.expect("symbols string table not found"));
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_strtab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "12b2a48357505fe6c4aecf04b0cc2e0abc798d379a4cb35b7bc8c58c6bdb50d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12b2a48357505fe6c4aecf04b0cc2e0abc798d379a4cb35b7bc8c58c6bdb50d9", kill_on_drop: false }`
[INFO] [stdout] 12b2a48357505fe6c4aecf04b0cc2e0abc798d379a4cb35b7bc8c58c6bdb50d9