[INFO] cloning repository https://github.com/xurtis/course-calendar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xurtis/course-calendar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxurtis%2Fcourse-calendar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxurtis%2Fcourse-calendar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6914b67b70138f03dae01364e1230b68a0b9759
[INFO] checking xurtis/course-calendar against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxurtis%2Fcourse-calendar" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xurtis/course-calendar on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xurtis/course-calendar
[INFO] finished tweaking git repo https://github.com/xurtis/course-calendar
[INFO] tweaked toml for git repo https://github.com/xurtis/course-calendar written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/xurtis/course-calendar already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8f0e6a8b224b3f84a6fa18a22220e56db1a12f02994c535a5b295dfcbc95724
[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" "a8f0e6a8b224b3f84a6fa18a22220e56db1a12f02994c535a5b295dfcbc95724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8f0e6a8b224b3f84a6fa18a22220e56db1a12f02994c535a5b295dfcbc95724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f0e6a8b224b3f84a6fa18a22220e56db1a12f02994c535a5b295dfcbc95724", kill_on_drop: false }`
[INFO] [stdout] a8f0e6a8b224b3f84a6fa18a22220e56db1a12f02994c535a5b295dfcbc95724
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d232712749e01a288fe2578bc64c673eb6c561dbef6a9e70f8fe2adc9bfe086b
[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" "d232712749e01a288fe2578bc64c673eb6c561dbef6a9e70f8fe2adc9bfe086b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking ics v0.4.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking course-calendar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `duration_format`
[INFO] [stdout]   --> src/main.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn duration_format(duration: Duration) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `duration_format`
[INFO] [stdout]   --> src/main.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn duration_format(duration: Duration) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "d232712749e01a288fe2578bc64c673eb6c561dbef6a9e70f8fe2adc9bfe086b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d232712749e01a288fe2578bc64c673eb6c561dbef6a9e70f8fe2adc9bfe086b", kill_on_drop: false }`
[INFO] [stdout] d232712749e01a288fe2578bc64c673eb6c561dbef6a9e70f8fe2adc9bfe086b