[INFO] crate mathru 0.6.10 is already in cache
[INFO] checking mathru-0.6.10 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate mathru 0.6.10 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mathru 0.6.10 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mathru 0.6.10
[INFO] finished tweaking crates.io crate mathru 0.6.10
[INFO] tweaked toml for crates.io crate mathru 0.6.10 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate mathru 0.6.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", 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] c00ff7409a4a0fbb7c32b26daad6a1ac3d58b9d8d18744e9f82f9e4c1f88ce8f
[INFO] running `Command { std: "docker" "start" "-a" "c00ff7409a4a0fbb7c32b26daad6a1ac3d58b9d8d18744e9f82f9e4c1f88ce8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c00ff7409a4a0fbb7c32b26daad6a1ac3d58b9d8d18744e9f82f9e4c1f88ce8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c00ff7409a4a0fbb7c32b26daad6a1ac3d58b9d8d18744e9f82f9e4c1f88ce8f", kill_on_drop: false }`
[INFO] [stdout] c00ff7409a4a0fbb7c32b26daad6a1ac3d58b9d8d18744e9f82f9e4c1f88ce8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f641990779ca611a30abccc84e4e8b1ff9b13760c871018a0463274fba8237cd
[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" "f641990779ca611a30abccc84e4e8b1ff9b13760c871018a0463274fba8237cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cc v1.0.56
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking jpeg-decoder v0.1.19
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking png v0.16.6
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking font-kit v0.7.1
[INFO] [stderr]     Checking simba v0.1.5
[INFO] [stderr]     Checking image v0.23.6
[INFO] [stderr]     Checking nalgebra v0.21.1
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking mathru v0.6.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.1
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "f641990779ca611a30abccc84e4e8b1ff9b13760c871018a0463274fba8237cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f641990779ca611a30abccc84e4e8b1ff9b13760c871018a0463274fba8237cd", kill_on_drop: false }`
[INFO] [stdout] f641990779ca611a30abccc84e4e8b1ff9b13760c871018a0463274fba8237cd