[INFO] cloning repository https://github.com/mattcl/repo-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattcl/repo-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattcl%2Frepo-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattcl%2Frepo-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 886f64b86ec2505a966ea8d479f76942446f8c1d
[INFO] checking mattcl/repo-rs against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattcl%2Frepo-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/mattcl/repo-rs on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattcl/repo-rs
[INFO] finished tweaking git repo https://github.com/mattcl/repo-rs
[INFO] tweaked toml for git repo https://github.com/mattcl/repo-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mattcl/repo-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-core v0.1.7
[INFO] [stderr]   Downloaded prettytable-rs v0.6.6
[INFO] [stderr]   Downloaded rayon-core v1.0.0
[INFO] [stderr]   Downloaded libz-sys v1.0.13
[INFO] [stderr]   Downloaded csv v0.14.7
[INFO] [stderr]   Downloaded vec_map v0.7.0
[INFO] [stderr]   Downloaded cmake v0.1.22
[INFO] [stderr]   Downloaded colored v1.5.1
[INFO] [stderr]   Downloaded unicode-segmentation v1.1.0
[INFO] [stderr]   Downloaded dirs-sys v0.3.3
[INFO] [stderr]   Downloaded clap v2.24.1
[INFO] [stderr]   Downloaded openssl-probe v0.1.1
[INFO] [stderr]   Downloaded tokio-io v0.1.1
[INFO] [stderr]   Downloaded libgit2-sys v0.6.10
[INFO] [stderr]   Downloaded curl-sys v0.3.11
[INFO] [stderr]   Downloaded openssl-sys v0.9.11
[INFO] [stderr]   Downloaded dirs v2.0.1
[INFO] [stderr]   Downloaded futures v0.1.13
[INFO] [stderr]   Downloaded rayon v0.7.0
[INFO] [stderr]   Downloaded git2 v0.6.5
[INFO] [stderr]   Downloaded encode_unicode v0.2.0
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dad33be8658e4e87c46486830eddee19f2eba270edc6b48c0a02db8df623b1d8
[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" "dad33be8658e4e87c46486830eddee19f2eba270edc6b48c0a02db8df623b1d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dad33be8658e4e87c46486830eddee19f2eba270edc6b48c0a02db8df623b1d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad33be8658e4e87c46486830eddee19f2eba270edc6b48c0a02db8df623b1d8", kill_on_drop: false }`
[INFO] [stdout] dad33be8658e4e87c46486830eddee19f2eba270edc6b48c0a02db8df623b1d8
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d67599f6492fd848e3240b53a826259f57fdb5fbfea3548fd2d1adc45081cf5
[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" "3d67599f6492fd848e3240b53a826259f57fdb5fbfea3548fd2d1adc45081cf5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking unicode-normalization v0.1.4
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.0.0
[INFO] [stderr]     Checking futures v0.1.13
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking encode_unicode v0.2.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking serde v1.0.4
[INFO] [stderr]     Checking openssl-probe v0.1.1
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking term v0.4.5
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking unicode-bidi v0.2.5
[INFO] [stderr]     Checking colored v1.5.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling cmake v0.1.22
[INFO] [stderr]    Compiling openssl-sys v0.9.11
[INFO] [stderr]    Compiling libz-sys v1.0.13
[INFO] [stderr]    Compiling curl-sys v0.3.11
[INFO] [stderr]    Compiling libssh2-sys v0.2.6
[INFO] [stderr]    Compiling libgit2-sys v0.6.10
[INFO] [stderr]     Checking idna v0.1.1
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking num_cpus v1.5.0
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking dirs v2.0.1
[INFO] [stderr]     Checking clap v2.24.1
[INFO] [stderr]     Checking prettytable-rs v0.6.6
[INFO] [stderr]     Checking bytes v0.4.3
[INFO] [stderr]     Checking mio v0.6.7
[INFO] [stderr]     Checking tokio-io v0.1.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling serde_derive_internals v0.15.0
[INFO] [stderr]     Checking tokio-core v0.1.7
[INFO] [stderr]     Checking rayon v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.4
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking git2 v0.6.5
[INFO] [stderr]     Checking repo-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 51s
[INFO] running `Command { std: "docker" "inspect" "3d67599f6492fd848e3240b53a826259f57fdb5fbfea3548fd2d1adc45081cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d67599f6492fd848e3240b53a826259f57fdb5fbfea3548fd2d1adc45081cf5", kill_on_drop: false }`
[INFO] [stdout] 3d67599f6492fd848e3240b53a826259f57fdb5fbfea3548fd2d1adc45081cf5