[INFO] updating cached repository https://github.com/kcomas/rust-trees
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce64489eb8fadce31c44984ef511a169ce2ba219
[INFO] testing kcomas/rust-trees against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkcomas%2Frust-trees" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kcomas/rust-trees on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kcomas/rust-trees
[INFO] finished tweaking git repo https://github.com/kcomas/rust-trees
[INFO] tweaked toml for git repo https://github.com/kcomas/rust-trees written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kcomas/rust-trees already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 9777fc6493ca04f26434bfd04e49d4b1d871024563981f8f465cab538a59b6c1
[INFO] running `"docker" "start" "-a" "9777fc6493ca04f26434bfd04e49d4b1d871024563981f8f465cab538a59b6c1"`
[INFO] [stderr]    Compiling serde v1.0.9
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling net2 v0.2.29
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.5
[INFO] [stderr]    Compiling mime v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.9
[INFO] [stderr]    Compiling bytes v0.4.4
[INFO] [stderr]    Compiling mio v0.6.9
[INFO] [stderr]    Compiling tokio-io v0.1.2
[INFO] [stderr]    Compiling tokio-core v0.1.8
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling hyper v0.11.1
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `query`
[INFO] [stderr]   --> src/tree/http_server.rs:35:29
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 if let Some(query) = req.query() {
[INFO] [stderr]    |                             ^^^^^ help: consider prefixing with an underscore: `_query`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.35s
[INFO] running `"docker" "inspect" "9777fc6493ca04f26434bfd04e49d4b1d871024563981f8f465cab538a59b6c1"`
[INFO] running `"docker" "rm" "-f" "9777fc6493ca04f26434bfd04e49d4b1d871024563981f8f465cab538a59b6c1"`
[INFO] [stdout] 9777fc6493ca04f26434bfd04e49d4b1d871024563981f8f465cab538a59b6c1
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a135023158c0539da03df109e4b9c0b0825d7b7c579abdea1070b1746f2b2f88
[INFO] running `"docker" "start" "-a" "a135023158c0539da03df109e4b9c0b0825d7b7c579abdea1070b1746f2b2f88"`
[INFO] [stderr]    Compiling tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `query`
[INFO] [stderr]   --> src/tree/http_server.rs:35:29
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 if let Some(query) = req.query() {
[INFO] [stderr]    |                             ^^^^^ help: consider prefixing with an underscore: `_query`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "a135023158c0539da03df109e4b9c0b0825d7b7c579abdea1070b1746f2b2f88"`
[INFO] running `"docker" "rm" "-f" "a135023158c0539da03df109e4b9c0b0825d7b7c579abdea1070b1746f2b2f88"`
[INFO] [stdout] a135023158c0539da03df109e4b9c0b0825d7b7c579abdea1070b1746f2b2f88
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 93b71b3b2c76f0cb4d9746ef5809caa21e967f6c669889829c0695fb443d56b2
[INFO] running `"docker" "start" "-a" "93b71b3b2c76f0cb4d9746ef5809caa21e967f6c669889829c0695fb443d56b2"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tree-c49c37b8bd6710ca
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tree::node::test::basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "93b71b3b2c76f0cb4d9746ef5809caa21e967f6c669889829c0695fb443d56b2"`
[INFO] running `"docker" "rm" "-f" "93b71b3b2c76f0cb4d9746ef5809caa21e967f6c669889829c0695fb443d56b2"`
[INFO] [stdout] 93b71b3b2c76f0cb4d9746ef5809caa21e967f6c669889829c0695fb443d56b2