[INFO] fetching crate trk-io 0.20.0...
[INFO] checking trk-io-0.20.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate trk-io 0.20.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate trk-io 0.20.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trk-io 0.20.0
[INFO] finished tweaking crates.io crate trk-io 0.20.0
[INFO] tweaked toml for crates.io crate trk-io 0.20.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate trk-io 0.20.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matrixmultiply v0.3.1
[INFO] [stderr]   Downloaded byteordered v0.5.0
[INFO] [stderr]   Downloaded libc v0.2.96
[INFO] [stderr]   Downloaded nalgebra v0.27.1
[INFO] [stderr]   Downloaded safe-transmute v0.11.2
[INFO] [stderr]   Downloaded nifti v0.14.0
[INFO] [stderr]   Downloaded ndarray v0.15.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3c9d3a872171695bc6e3049efcf4712e72fc609eaee6e771e1a42755a7c1b2b
[INFO] running `Command { std: "docker" "start" "-a" "c3c9d3a872171695bc6e3049efcf4712e72fc609eaee6e771e1a42755a7c1b2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3c9d3a872171695bc6e3049efcf4712e72fc609eaee6e771e1a42755a7c1b2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3c9d3a872171695bc6e3049efcf4712e72fc609eaee6e771e1a42755a7c1b2b", kill_on_drop: false }`
[INFO] [stdout] c3c9d3a872171695bc6e3049efcf4712e72fc609eaee6e771e1a42755a7c1b2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f251bd298dca6a64e39e063627374167e01fe71459e7ffd0a734e73bdcf0d6d
[INFO] running `Command { std: "docker" "start" "-a" "7f251bd298dca6a64e39e063627374167e01fe71459e7ffd0a734e73bdcf0d6d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking simba v0.5.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking nalgebra v0.27.1
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]     Checking trk-io v0.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.98s
[INFO] running `Command { std: "docker" "inspect" "7f251bd298dca6a64e39e063627374167e01fe71459e7ffd0a734e73bdcf0d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f251bd298dca6a64e39e063627374167e01fe71459e7ffd0a734e73bdcf0d6d", kill_on_drop: false }`
[INFO] [stdout] 7f251bd298dca6a64e39e063627374167e01fe71459e7ffd0a734e73bdcf0d6d