[INFO] cloning repository https://github.com/nathanial/pico-todo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nathanial/pico-todo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanial%2Fpico-todo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanial%2Fpico-todo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3126c29eae45c0eb63466419f3c32a095f2c0197
[INFO] checking nathanial/pico-todo against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanial%2Fpico-todo" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nathanial/pico-todo on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nathanial/pico-todo
[INFO] finished tweaking git repo https://github.com/nathanial/pico-todo
[INFO] tweaked toml for git repo https://github.com/nathanial/pico-todo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/nathanial/pico-todo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] [stderr]   Downloaded synstructure v0.10.2
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded cc v1.0.37
[INFO] [stderr]   Downloaded dirs-sys v0.3.3
[INFO] [stderr]   Downloaded failure_derive v0.1.5
[INFO] [stderr]   Downloaded rand_core v0.4.0
[INFO] [stderr]   Downloaded constant_time_eq v0.1.3
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded rand_os v0.1.3
[INFO] [stderr]   Downloaded termion v1.5.3
[INFO] [stderr]   Downloaded serde v1.0.92
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded quote v0.6.12
[INFO] [stderr]   Downloaded backtrace-sys v0.1.28
[INFO] [stderr]   Downloaded autocfg v0.1.4
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded syn v0.15.36
[INFO] [stderr]   Downloaded rustc-demangle v0.1.15
[INFO] [stderr]   Downloaded serde_json v1.0.39
[INFO] [stderr]   Downloaded blake2-rfc v0.2.18
[INFO] [stderr]   Downloaded dirs v2.0.1
[INFO] [stderr]   Downloaded serde_derive v1.0.92
[INFO] [stderr]   Downloaded argon2rs v0.2.5
[INFO] [stderr]   Downloaded arrayvec v0.4.10
[INFO] [stderr]   Downloaded proc-macro2 v0.4.30
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded redox_users v0.3.0
[INFO] [stderr]   Downloaded backtrace v0.3.30
[INFO] [stderr]   Downloaded failure v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc81a943a669840b609ac1caf70aa9cb2f0622bf52b4548c067b0ecf0cc0acf0
[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" "fc81a943a669840b609ac1caf70aa9cb2f0622bf52b4548c067b0ecf0cc0acf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc81a943a669840b609ac1caf70aa9cb2f0622bf52b4548c067b0ecf0cc0acf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc81a943a669840b609ac1caf70aa9cb2f0622bf52b4548c067b0ecf0cc0acf0", kill_on_drop: false }`
[INFO] [stdout] fc81a943a669840b609ac1caf70aa9cb2f0622bf52b4548c067b0ecf0cc0acf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 3e3b974fe20f7e4b626f1a70869aebac6a6af0a6e56eeb8015b66d03c6468cd7
[INFO] running `Command { std: "docker" "start" "-a" "3e3b974fe20f7e4b626f1a70869aebac6a6af0a6e56eeb8015b66d03c6468cd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking pico-todo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.36s
[INFO] running `Command { std: "docker" "inspect" "3e3b974fe20f7e4b626f1a70869aebac6a6af0a6e56eeb8015b66d03c6468cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e3b974fe20f7e4b626f1a70869aebac6a6af0a6e56eeb8015b66d03c6468cd7", kill_on_drop: false }`
[INFO] [stdout] 3e3b974fe20f7e4b626f1a70869aebac6a6af0a6e56eeb8015b66d03c6468cd7