[INFO] crate rust-rocket 0.3.5 is already in cache
[INFO] testing rust-rocket-0.3.5 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate rust-rocket 0.3.5 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust-rocket 0.3.5 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust-rocket 0.3.5
[INFO] finished tweaking crates.io crate rust-rocket 0.3.5
[INFO] tweaked toml for crates.io crate rust-rocket 0.3.5 written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 7442c3ab19379d1949855505a49f178000eb431026238ac49423e7b2cd5522ed
[INFO] running `"docker" "start" "-a" "7442c3ab19379d1949855505a49f178000eb431026238ac49423e7b2cd5522ed"`
[INFO] [stderr]    Compiling rust-rocket v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client.rs:232:33
[INFO] [stderr]     |
[INFO] [stderr] 232 | ...                   let mut track =
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client.rs:242:33
[INFO] [stderr]     |
[INFO] [stderr] 242 | ...                   let mut track =
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "7442c3ab19379d1949855505a49f178000eb431026238ac49423e7b2cd5522ed"`
[INFO] running `"docker" "rm" "-f" "7442c3ab19379d1949855505a49f178000eb431026238ac49423e7b2cd5522ed"`
[INFO] [stdout] 7442c3ab19379d1949855505a49f178000eb431026238ac49423e7b2cd5522ed
[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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] fd3cb8ac866d046ef74ffe177a4a4058b2a6c6d6226edf39c209ef2c9790c8cf
[INFO] running `"docker" "start" "-a" "fd3cb8ac866d046ef74ffe177a4a4058b2a6c6d6226edf39c209ef2c9790c8cf"`
[INFO] [stderr]    Compiling rust-rocket v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client.rs:232:33
[INFO] [stderr]     |
[INFO] [stderr] 232 | ...                   let mut track =
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client.rs:242:33
[INFO] [stderr]     |
[INFO] [stderr] 242 | ...                   let mut track =
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "fd3cb8ac866d046ef74ffe177a4a4058b2a6c6d6226edf39c209ef2c9790c8cf"`
[INFO] running `"docker" "rm" "-f" "fd3cb8ac866d046ef74ffe177a4a4058b2a6c6d6226edf39c209ef2c9790c8cf"`
[INFO] [stdout] fd3cb8ac866d046ef74ffe177a4a4058b2a6c6d6226edf39c209ef2c9790c8cf
[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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] d72b7c939392aa9cc74e0658b0fd644d758595e45acb97dce382f9c52426d63a
[INFO] running `"docker" "start" "-a" "d72b7c939392aa9cc74e0658b0fd644d758595e45acb97dce382f9c52426d63a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_rocket-5a6c46490af6494e
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test track::tests::test_three_keys ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-rocket
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/client.rs - client::Rocket::connect (line 83) ... ok
[INFO] [stdout] test src/client.rs - client::Rocket::new (line 60) ... ok
[INFO] [stdout] test src/client.rs - client::Rocket::get_track_mut (line 117) ... ok
[INFO] [stdout] test src/client.rs - client::Rocket::poll_events (line 168) ... ok
[INFO] [stdout] test src/interpolation.rs - interpolation::Interpolation::interpolate (line 34) ... ok
[INFO] [stdout] test src/interpolation.rs - interpolation::Interpolation::interpolate (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d72b7c939392aa9cc74e0658b0fd644d758595e45acb97dce382f9c52426d63a"`
[INFO] running `"docker" "rm" "-f" "d72b7c939392aa9cc74e0658b0fd644d758595e45acb97dce382f9c52426d63a"`
[INFO] [stdout] d72b7c939392aa9cc74e0658b0fd644d758595e45acb97dce382f9c52426d63a