[INFO] fetching crate readings 0.1.3...
[INFO] checking readings-0.1.3 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate readings 0.1.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate readings 0.1.3 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate readings 0.1.3
[INFO] finished tweaking crates.io crate readings 0.1.3
[INFO] tweaked toml for crates.io crate readings 0.1.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate readings 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded float-ord v0.2.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.12
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded bumpalo v3.2.1
[INFO] [stderr]   Downloaded core-text v15.0.0
[INFO] [stderr]   Downloaded font-kit v0.6.0
[INFO] [stderr]   Downloaded core-graphics v0.19.0
[INFO] [stderr]   Downloaded cmake v0.1.42
[INFO] [stderr]   Downloaded num-iter v0.1.40
[INFO] [stderr]   Downloaded web-sys v0.3.39
[INFO] [stderr]   Downloaded deflate v0.8.4
[INFO] [stderr]   Downloaded palette_derive v0.5.0
[INFO] [stderr]   Downloaded palette v0.5.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.62
[INFO] [stderr]   Downloaded freetype v0.4.1
[INFO] [stderr]   Downloaded inflate v0.4.5
[INFO] [stderr]   Downloaded js-sys v0.3.39
[INFO] [stderr]   Downloaded pathfinder_geometry v0.5.1
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.0
[INFO] [stderr]   Downloaded bytemuck v1.2.0
[INFO] [stderr]   Downloaded wio v0.2.2
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.62
[INFO] [stderr]   Downloaded expat-sys v2.1.6
[INFO] [stderr]   Downloaded png v0.16.3
[INFO] [stderr]   Downloaded plotters v0.2.14
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.62
[INFO] [stderr]   Downloaded image v0.23.4
[INFO] [stderr]   Downloaded dwrote v0.10.0
[INFO] [stderr]   Downloaded servo-fontconfig-sys v4.0.9
[INFO] [stderr]   Downloaded servo-fontconfig v0.4.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.62
[INFO] [stderr]   Downloaded gif v0.10.3
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.19
[INFO] [stderr]   Downloaded servo-freetype-sys v4.0.5
[INFO] [stderr]   Downloaded syn v1.0.19
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.62
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 952bab7d1f85366bd53e88131090502afa2c2e0613ac83dae29e09770afdc5c2
[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" "952bab7d1f85366bd53e88131090502afa2c2e0613ac83dae29e09770afdc5c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "952bab7d1f85366bd53e88131090502afa2c2e0613ac83dae29e09770afdc5c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952bab7d1f85366bd53e88131090502afa2c2e0613ac83dae29e09770afdc5c2", kill_on_drop: false }`
[INFO] [stdout] 952bab7d1f85366bd53e88131090502afa2c2e0613ac83dae29e09770afdc5c2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3fc3b56f8aca4e429c1f9ba14257f199a26232189b0837093e90592fa8660b3
[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" "d3fc3b56f8aca4e429c1f9ba14257f199a26232189b0837093e90592fa8660b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking jpeg-decoder v0.1.19
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking font-kit v0.6.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking plotters v0.2.14
[INFO] [stderr]     Checking readings v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.58s
[INFO] running `Command { std: "docker" "inspect" "d3fc3b56f8aca4e429c1f9ba14257f199a26232189b0837093e90592fa8660b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3fc3b56f8aca4e429c1f9ba14257f199a26232189b0837093e90592fa8660b3", kill_on_drop: false }`
[INFO] [stdout] d3fc3b56f8aca4e429c1f9ba14257f199a26232189b0837093e90592fa8660b3