[INFO] fetching crate tensorboard-rs 0.2.4...
[INFO] checking tensorboard-rs-0.2.4 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate tensorboard-rs 0.2.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tensorboard-rs 0.2.4 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tensorboard-rs 0.2.4
[INFO] finished tweaking crates.io crate tensorboard-rs 0.2.4
[INFO] tweaked toml for crates.io crate tensorboard-rs 0.2.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate tensorboard-rs 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lapacke v0.2.0
[INFO] [stderr]   Downloaded lapacke-sys v0.1.4
[INFO] [stderr]   Downloaded blas-src v0.3.0
[INFO] [stderr]   Downloaded cauchy v0.2.2
[INFO] [stderr]   Downloaded blas-src v0.2.1
[INFO] [stderr]   Downloaded protobuf-codegen v2.14.0
[INFO] [stderr]   Downloaded ndarray v0.12.1
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.19
[INFO] [stderr]   Downloaded image v0.23.4
[INFO] [stderr]   Downloaded protobuf v2.14.0
[INFO] [stderr]   Downloaded cblas-sys v0.1.4
[INFO] [stderr]   Downloaded lapack-src v0.3.0
[INFO] [stderr]   Downloaded auto-diff v0.3.3
[INFO] [stderr]   Downloaded ndarray-linalg v0.11.1
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7476774c650a4151ffb2b6e64f4c0cb7d44a140ed4b2f850b47cbda1f5dbf5a0
[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" "7476774c650a4151ffb2b6e64f4c0cb7d44a140ed4b2f850b47cbda1f5dbf5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7476774c650a4151ffb2b6e64f4c0cb7d44a140ed4b2f850b47cbda1f5dbf5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7476774c650a4151ffb2b6e64f4c0cb7d44a140ed4b2f850b47cbda1f5dbf5a0", kill_on_drop: false }`
[INFO] [stdout] 7476774c650a4151ffb2b6e64f4c0cb7d44a140ed4b2f850b47cbda1f5dbf5a0
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67821c65615d1a70b22ae33a2f1b80eeeb3184f49c0d454135edf406bd863ca1
[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" "67821c65615d1a70b22ae33a2f1b80eeeb3184f49c0d454135edf406bd863ca1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling protobuf v2.14.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking lapack-src v0.3.0
[INFO] [stderr]     Checking blas-src v0.3.0
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]     Checking lapacke-sys v0.1.4
[INFO] [stderr]     Checking gethostname v0.2.1
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[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking protobuf-codegen v2.14.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.19
[INFO] [stderr]     Checking lapacke v0.2.0
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]     Checking cauchy v0.2.2
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]     Checking ndarray-linalg v0.11.1
[INFO] [stderr]     Checking auto-diff v0.3.3
[INFO] [stderr]     Checking tensorboard-rs v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/summary.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/summary.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/summary.rs:81:23
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn custom_scalars(layout: f32) {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/summary.rs:81:23
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn custom_scalars(layout: f32) {
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `open`
[INFO] [stdout]  --> examples/draw_histo.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image::{open, };
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 54.96s
[INFO] running `Command { std: "docker" "inspect" "67821c65615d1a70b22ae33a2f1b80eeeb3184f49c0d454135edf406bd863ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67821c65615d1a70b22ae33a2f1b80eeeb3184f49c0d454135edf406bd863ca1", kill_on_drop: false }`
[INFO] [stdout] 67821c65615d1a70b22ae33a2f1b80eeeb3184f49c0d454135edf406bd863ca1