[INFO] fetching crate itoap 1.0.1...
[INFO] checking itoap-1.0.1 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate itoap 1.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate itoap 1.0.1 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate itoap 1.0.1
[INFO] finished tweaking crates.io crate itoap 1.0.1
[INFO] tweaked toml for crates.io crate itoap 1.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93c15a691dba232b25502fe879871515c1654b2619d3c01c39f51970df8dbdf4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "93c15a691dba232b25502fe879871515c1654b2619d3c01c39f51970df8dbdf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93c15a691dba232b25502fe879871515c1654b2619d3c01c39f51970df8dbdf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c15a691dba232b25502fe879871515c1654b2619d3c01c39f51970df8dbdf4", kill_on_drop: false }`
[INFO] [stdout] 93c15a691dba232b25502fe879871515c1654b2619d3c01c39f51970df8dbdf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cc50df173668ce4d56aea37c69ae4d6b56dcbd08ea2ef8828a875b8e4d3f3dd3
[INFO] running `Command { std: "docker" "start" "-a" "cc50df173668ce4d56aea37c69ae4d6b56dcbd08ea2ef8828a875b8e4d3f3dd3", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking itoap v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stdout] error[E0425]: cannot find function `write` in crate `itoa`
[INFO] [stdout]   --> benches/bench.rs:56:39
[INFO] [stdout]    |
[INFO] [stdout] 56 |                           let _ = itoa::write(&mut buf, black_box($value));
[INFO] [stdout]    |                                         ^^^^^ not found in `itoa`
[INFO] [stdout] ...
[INFO] [stdout] 84 | / benches! {
[INFO] [stdout] 85 | |     bench_u64_0(0u64),
[INFO] [stdout] 86 | |     bench_u64_half(<u32>::max_value() as u64),
[INFO] [stdout] 87 | |     bench_u64_max(<u64>::max_value()),
[INFO] [stdout] ...  |
[INFO] [stdout] 91 | |     bench_u128_max(<u128>::max_value())
[INFO] [stdout] 92 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            core::fmt::write
[INFO] [stdout]            core::ptr::write
[INFO] [stdout]            itoap::write
[INFO] [stdout]            std::fmt::write
[INFO] [stdout]            std::fs::write
[INFO] [stdout]            std::ptr::write
[INFO] [stdout]    = note: this error originates in the macro `benches` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `itoap`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cc50df173668ce4d56aea37c69ae4d6b56dcbd08ea2ef8828a875b8e4d3f3dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc50df173668ce4d56aea37c69ae4d6b56dcbd08ea2ef8828a875b8e4d3f3dd3", kill_on_drop: false }`
[INFO] [stdout] cc50df173668ce4d56aea37c69ae4d6b56dcbd08ea2ef8828a875b8e4d3f3dd3