[INFO] cloning repository https://github.com/stevesweetney/basic-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevesweetney/basic-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 965ba17cffe952654f9719e9f34dc61ccb6639de
[INFO] checking stevesweetney/basic-rs against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stevesweetney/basic-rs on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stevesweetney/basic-rs
[INFO] finished tweaking git repo https://github.com/stevesweetney/basic-rs
[INFO] tweaked toml for git repo https://github.com/stevesweetney/basic-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/stevesweetney/basic-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded same-file v1.0.4
[INFO] [stderr]   Downloaded serde_derive v1.0.90
[INFO] [stderr]   Downloaded autocfg v0.1.2
[INFO] [stderr]   Downloaded walkdir v2.2.7
[INFO] [stderr]   Downloaded tinytemplate v1.0.1
[INFO] [stderr]   Downloaded criterion v0.2.11
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded rayon-core v1.4.1
[INFO] [stderr]   Downloaded csv-core v0.1.5
[INFO] [stderr]   Downloaded serde v1.0.90
[INFO] [stderr]   Downloaded lodepng v2.4.2
[INFO] [stderr]   Downloaded cast v0.2.2
[INFO] [stderr]   Downloaded criterion-plot v0.3.1
[INFO] [stderr]   Downloaded num-integer v0.1.39
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded gif v0.10.1
[INFO] [stderr]   Downloaded safe-transmute v0.10.1
[INFO] [stderr]   Downloaded imgref v1.3.5
[INFO] [stderr]   Downloaded natord v1.0.9
[INFO] [stderr]   Downloaded error-chain v0.12.0
[INFO] [stderr]   Downloaded libc v0.2.49
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded gif-dispose v2.2.0
[INFO] [stderr]   Downloaded imagequant v2.11.9
[INFO] [stderr]   Downloaded num-rational v0.2.1
[INFO] [stderr]   Downloaded itoa v0.4.3
[INFO] [stderr]   Downloaded wild v2.0.1
[INFO] [stderr]   Downloaded gifski v0.8.7
[INFO] [stderr]   Downloaded tiff v0.2.2
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded proc-macro2 v0.4.27
[INFO] [stderr]   Downloaded num-traits v0.2.6
[INFO] [stderr]   Downloaded syn v0.15.27
[INFO] [stderr]   Downloaded num-derive v0.2.4
[INFO] [stderr]   Downloaded bitflags v1.0.4
[INFO] [stderr]   Downloaded imagequant-sys v2.12.2
[INFO] [stderr]   Downloaded png v0.14.0
[INFO] [stderr]   Downloaded image v0.21.0
[INFO] [stderr]   Downloaded deflate v0.7.19
[INFO] [stderr]   Downloaded rgb v0.8.13
[INFO] [stderr]   Downloaded rayon v1.0.3
[INFO] [stderr]   Downloaded backtrace v0.3.15
[INFO] [stderr]   Downloaded rand_xoshiro v0.1.0
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded either v1.5.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded cfg-if v0.1.6
[INFO] [stderr]   Downloaded ryu v0.2.7
[INFO] [stderr]   Downloaded rustc-demangle v0.1.14
[INFO] [stderr]   Downloaded csv v1.0.6
[INFO] [stderr]   Downloaded resize v0.3.0
[INFO] [stderr]   Downloaded pbr v1.0.1
[INFO] [stderr]   Downloaded cc v1.0.36
[INFO] [stderr]   Downloaded quote v0.6.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "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] b03659b6ed8fea9414b9f39a92a3bd5272387132115178976ccab70e4d0601e5
[INFO] running `Command { std: "docker" "start" "-a" "b03659b6ed8fea9414b9f39a92a3bd5272387132115178976ccab70e4d0601e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b03659b6ed8fea9414b9f39a92a3bd5272387132115178976ccab70e4d0601e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b03659b6ed8fea9414b9f39a92a3bd5272387132115178976ccab70e4d0601e5", kill_on_drop: false }`
[INFO] [stdout] b03659b6ed8fea9414b9f39a92a3bd5272387132115178976ccab70e4d0601e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f6f5492af97617b49bdb96697e14ca31d5f6fdb8ab2405743b02ccf78aa37cf
[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" "6f6f5492af97617b49bdb96697e14ca31d5f6fdb8ab2405743b02ccf78aa37cf", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking imgref v1.3.5
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking resize v0.3.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking wild v2.0.1
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking lodepng v2.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking pbr v1.0.1
[INFO] [stderr]     Checking gif-dispose v2.2.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling imagequant-sys v2.12.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]     Checking png v0.14.0
[INFO] [stderr]     Checking imagequant v2.11.9
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking gifski v0.8.7
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking csv v1.0.6
[INFO] [stderr]     Checking tinytemplate v1.0.1
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.0
[INFO] [stderr]     Checking basic v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.77s
[INFO] running `Command { std: "docker" "inspect" "6f6f5492af97617b49bdb96697e14ca31d5f6fdb8ab2405743b02ccf78aa37cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f6f5492af97617b49bdb96697e14ca31d5f6fdb8ab2405743b02ccf78aa37cf", kill_on_drop: false }`
[INFO] [stdout] 6f6f5492af97617b49bdb96697e14ca31d5f6fdb8ab2405743b02ccf78aa37cf