[INFO] cloning repository https://github.com/nicbk/linkedhashmap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nicbk/linkedhashmap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicbk%2Flinkedhashmap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicbk%2Flinkedhashmap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a359943d35963d97126776d80760ffaf65fa021
[INFO] testing nicbk/linkedhashmap against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicbk%2Flinkedhashmap" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nicbk/linkedhashmap on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nicbk/linkedhashmap
[INFO] finished tweaking git repo https://github.com/nicbk/linkedhashmap
[INFO] tweaked toml for git repo https://github.com/nicbk/linkedhashmap written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/nicbk/linkedhashmap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18f462ea5a889e82c5e1a79e1650678af7328b28ccc7a3b276c10c55aec7f8b0
[INFO] running `Command { std: "docker" "start" "-a" "18f462ea5a889e82c5e1a79e1650678af7328b28ccc7a3b276c10c55aec7f8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18f462ea5a889e82c5e1a79e1650678af7328b28ccc7a3b276c10c55aec7f8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18f462ea5a889e82c5e1a79e1650678af7328b28ccc7a3b276c10c55aec7f8b0", kill_on_drop: false }`
[INFO] [stdout] 18f462ea5a889e82c5e1a79e1650678af7328b28ccc7a3b276c10c55aec7f8b0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3e61e58a2aca3b2f32ba179660714fdabfe4310001e1d0297ac05fe60c4f00b
[INFO] running `Command { std: "docker" "start" "-a" "a3e61e58a2aca3b2f32ba179660714fdabfe4310001e1d0297ac05fe60c4f00b", kill_on_drop: false }`
[INFO] [stderr]    Compiling linkedhashmap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `end_of_chain` is never read
[INFO] [stdout]   --> src/main.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let mut end_of_chain = None;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "a3e61e58a2aca3b2f32ba179660714fdabfe4310001e1d0297ac05fe60c4f00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3e61e58a2aca3b2f32ba179660714fdabfe4310001e1d0297ac05fe60c4f00b", kill_on_drop: false }`
[INFO] [stdout] a3e61e58a2aca3b2f32ba179660714fdabfe4310001e1d0297ac05fe60c4f00b
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68841d022c2b8ce7299c87553de7b08e656227416a0f7fa7f5006116895ba492
[INFO] running `Command { std: "docker" "start" "-a" "68841d022c2b8ce7299c87553de7b08e656227416a0f7fa7f5006116895ba492", kill_on_drop: false }`
[INFO] [stderr]    Compiling linkedhashmap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `end_of_chain` is never read
[INFO] [stdout]   --> src/main.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let mut end_of_chain = None;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "68841d022c2b8ce7299c87553de7b08e656227416a0f7fa7f5006116895ba492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68841d022c2b8ce7299c87553de7b08e656227416a0f7fa7f5006116895ba492", kill_on_drop: false }`
[INFO] [stdout] 68841d022c2b8ce7299c87553de7b08e656227416a0f7fa7f5006116895ba492
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 309b6b42112d69c4d96966b620ab1bcbaf9ab8dacf6868426a9cdbb3fd8ae2a6
[INFO] running `Command { std: "docker" "start" "-a" "309b6b42112d69c4d96966b620ab1bcbaf9ab8dacf6868426a9cdbb3fd8ae2a6", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `end_of_chain` is never read
[INFO] [stderr]   --> src/main.rs:96:17
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let mut end_of_chain = None;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `linkedhashmap` (bin "linkedhashmap" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linkedhashmap-ebdbf8a67f558cfa)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "309b6b42112d69c4d96966b620ab1bcbaf9ab8dacf6868426a9cdbb3fd8ae2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "309b6b42112d69c4d96966b620ab1bcbaf9ab8dacf6868426a9cdbb3fd8ae2a6", kill_on_drop: false }`
[INFO] [stdout] 309b6b42112d69c4d96966b620ab1bcbaf9ab8dacf6868426a9cdbb3fd8ae2a6