[INFO] cloning repository https://github.com/nicholasfagan/pipes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nicholasfagan/pipes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicholasfagan%2Fpipes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicholasfagan%2Fpipes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b1606879d43b7f14d1b46528f2764545793f74b3 [INFO] checking nicholasfagan/pipes against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicholasfagan%2Fpipes" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nicholasfagan/pipes on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nicholasfagan/pipes [INFO] finished tweaking git repo https://github.com/nicholasfagan/pipes [INFO] tweaked toml for git repo https://github.com/nicholasfagan/pipes written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/nicholasfagan/pipes already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded termion v1.5.3 [INFO] [stderr] Downloaded structopt-derive v0.2.16 [INFO] [stderr] Downloaded syn v0.15.37 [INFO] [stderr] Downloaded structopt v0.2.16 [INFO] [stderr] Downloaded terminal_size v0.1.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b5c31d8b6b1873bbb979c70ac99bd89881b2f595933a06833ed55629165f58a8 [INFO] running `Command { std: "docker" "start" "-a" "b5c31d8b6b1873bbb979c70ac99bd89881b2f595933a06833ed55629165f58a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b5c31d8b6b1873bbb979c70ac99bd89881b2f595933a06833ed55629165f58a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5c31d8b6b1873bbb979c70ac99bd89881b2f595933a06833ed55629165f58a8", kill_on_drop: false }` [INFO] [stdout] b5c31d8b6b1873bbb979c70ac99bd89881b2f595933a06833ed55629165f58a8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a48310b9a46d2bf483af48864305e0145abfcabf3bb48014e73e8182302216cb [INFO] running `Command { std: "docker" "start" "-a" "a48310b9a46d2bf483af48864305e0145abfcabf3bb48014e73e8182302216cb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.37 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking terminal_size v0.1.8 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling structopt-derive v0.2.16 [INFO] [stderr] Checking ctrlc v3.1.3 [INFO] [stderr] Checking structopt v0.2.16 [INFO] [stderr] Checking pipes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `delay`, `num_pipes`, `color_chance`, `turn_chance`, `reset_chance`, and `pipe_set` are never read [INFO] [stdout] --> src/config.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 17 | pub delay : u64, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub num_pipes : u32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub color_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub turn_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub reset_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub pipe_set : u32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `delay`, `num_pipes`, `color_chance`, `turn_chance`, `reset_chance`, and `pipe_set` are never read [INFO] [stdout] --> src/config.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 17 | pub delay : u64, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub num_pipes : u32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub color_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub turn_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub reset_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub pipe_set : u32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.34s [INFO] running `Command { std: "docker" "inspect" "a48310b9a46d2bf483af48864305e0145abfcabf3bb48014e73e8182302216cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a48310b9a46d2bf483af48864305e0145abfcabf3bb48014e73e8182302216cb", kill_on_drop: false }` [INFO] [stdout] a48310b9a46d2bf483af48864305e0145abfcabf3bb48014e73e8182302216cb [INFO] checking nicholasfagan/pipes against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicholasfagan%2Fpipes" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nicholasfagan/pipes on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nicholasfagan/pipes [INFO] finished tweaking git repo https://github.com/nicholasfagan/pipes [INFO] tweaked toml for git repo https://github.com/nicholasfagan/pipes written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/nicholasfagan/pipes already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 441da3f72c79ae0400dfb0aae951b1970ec516d8ef01133b2217c96bdd6ce891 [INFO] running `Command { std: "docker" "start" "-a" "441da3f72c79ae0400dfb0aae951b1970ec516d8ef01133b2217c96bdd6ce891", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "441da3f72c79ae0400dfb0aae951b1970ec516d8ef01133b2217c96bdd6ce891", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "441da3f72c79ae0400dfb0aae951b1970ec516d8ef01133b2217c96bdd6ce891", kill_on_drop: false }` [INFO] [stdout] 441da3f72c79ae0400dfb0aae951b1970ec516d8ef01133b2217c96bdd6ce891 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ba61063d96f9fd0ff6a3f000cfec2a0b5631b284c8aba3ff5274920b5fd53f09 [INFO] running `Command { std: "docker" "start" "-a" "ba61063d96f9fd0ff6a3f000cfec2a0b5631b284c8aba3ff5274920b5fd53f09", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.37 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking terminal_size v0.1.8 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling structopt-derive v0.2.16 [INFO] [stderr] Checking ctrlc v3.1.3 [INFO] [stderr] Checking structopt v0.2.16 [INFO] [stderr] Checking pipes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `delay`, `num_pipes`, `color_chance`, `turn_chance`, `reset_chance`, and `pipe_set` are never read [INFO] [stdout] --> src/config.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 17 | pub delay : u64, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub num_pipes : u32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub color_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub turn_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub reset_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub pipe_set : u32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `delay`, `num_pipes`, `color_chance`, `turn_chance`, `reset_chance`, and `pipe_set` are never read [INFO] [stdout] --> src/config.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 17 | pub delay : u64, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub num_pipes : u32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub color_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | pub turn_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub reset_chance : u32, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub pipe_set : u32, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.29s [INFO] running `Command { std: "docker" "inspect" "ba61063d96f9fd0ff6a3f000cfec2a0b5631b284c8aba3ff5274920b5fd53f09", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba61063d96f9fd0ff6a3f000cfec2a0b5631b284c8aba3ff5274920b5fd53f09", kill_on_drop: false }` [INFO] [stdout] ba61063d96f9fd0ff6a3f000cfec2a0b5631b284c8aba3ff5274920b5fd53f09