[INFO] fetching crate wavefront 0.2.2...
[INFO] testing wavefront-0.2.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate wavefront 0.2.2 into /workspace/builds/worker-119/source
[INFO] validating manifest of crates.io crate wavefront 0.2.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wavefront 0.2.2
[INFO] finished tweaking crates.io crate wavefront 0.2.2
[INFO] tweaked toml for crates.io crate wavefront 0.2.2 written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27ef5688ca40ecc5775df1ae9913594a9d0cf03ea6f98c67fe02e4fdb9d4f287
[INFO] running `Command { std: "docker" "start" "-a" "27ef5688ca40ecc5775df1ae9913594a9d0cf03ea6f98c67fe02e4fdb9d4f287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27ef5688ca40ecc5775df1ae9913594a9d0cf03ea6f98c67fe02e4fdb9d4f287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ef5688ca40ecc5775df1ae9913594a9d0cf03ea6f98c67fe02e4fdb9d4f287", kill_on_drop: false }`
[INFO] [stdout] 27ef5688ca40ecc5775df1ae9913594a9d0cf03ea6f98c67fe02e4fdb9d4f287
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2736cfb2b70fa1409426deb91c2bce4531144247bdbea25adac26dcddad94e2b
[INFO] running `Command { std: "docker" "start" "-a" "2736cfb2b70fa1409426deb91c2bce4531144247bdbea25adac26dcddad94e2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling wavefront v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `iter_map_while` has been stable since 1.57.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(iter_map_while)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "2736cfb2b70fa1409426deb91c2bce4531144247bdbea25adac26dcddad94e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2736cfb2b70fa1409426deb91c2bce4531144247bdbea25adac26dcddad94e2b", kill_on_drop: false }`
[INFO] [stdout] 2736cfb2b70fa1409426deb91c2bce4531144247bdbea25adac26dcddad94e2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 098ab7481c0b3e3561baa3f4ba4f984c5ab056d45f19790c007926ff5839a8d3
[INFO] running `Command { std: "docker" "start" "-a" "098ab7481c0b3e3561baa3f4ba4f984c5ab056d45f19790c007926ff5839a8d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling wavefront v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `iter_map_while` has been stable since 1.57.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(iter_map_while)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_map_while` has been stable since 1.57.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(iter_map_while)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "098ab7481c0b3e3561baa3f4ba4f984c5ab056d45f19790c007926ff5839a8d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098ab7481c0b3e3561baa3f4ba4f984c5ab056d45f19790c007926ff5839a8d3", kill_on_drop: false }`
[INFO] [stdout] 098ab7481c0b3e3561baa3f4ba4f984c5ab056d45f19790c007926ff5839a8d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66379ffc442278d4f701dc419aa1d2c089b02381d39159841b2e38f0652bb758
[INFO] running `Command { std: "docker" "start" "-a" "66379ffc442278d4f701dc419aa1d2c089b02381d39159841b2e38f0652bb758", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: the feature `iter_map_while` has been stable since 1.57.0 and no longer requires an attribute to enable
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/lib.rs:19:12
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 19 | #![feature(iter_map_while)]
[INFO] [stdout] 
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `wavefront` (lib) generated 1 warning
[INFO] [stderr] warning: `wavefront` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wavefront-04312cab121e32f9)
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-9ea584871c81cede)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wavefront
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66379ffc442278d4f701dc419aa1d2c089b02381d39159841b2e38f0652bb758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66379ffc442278d4f701dc419aa1d2c089b02381d39159841b2e38f0652bb758", kill_on_drop: false }`
[INFO] [stdout] 66379ffc442278d4f701dc419aa1d2c089b02381d39159841b2e38f0652bb758