[INFO] cloning repository https://github.com/jmjoy/recorder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmjoy/recorder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmjoy%2Frecorder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmjoy%2Frecorder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 12230fa58bc7ec097c0bc7b671283805b9fc0f60 [INFO] checking jmjoy/recorder against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmjoy%2Frecorder" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jmjoy/recorder 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/jmjoy/recorder [INFO] finished tweaking git repo https://github.com/jmjoy/recorder [INFO] tweaked toml for git repo https://github.com/jmjoy/recorder written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jmjoy/recorder 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] Downloading crates ... [INFO] [stderr] Downloaded structopt-derive v0.3.2 [INFO] [stderr] Downloaded structopt v0.3.2 [INFO] [stderr] Downloaded num-derive v0.3.0 [INFO] [stderr] Downloaded proc-macro2 v1.0.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 783c46a969bc36621755f7f331f924fafcc641f49eddd8cbe0e4f7a2b8d76dfd [INFO] running `Command { std: "docker" "start" "-a" "783c46a969bc36621755f7f331f924fafcc641f49eddd8cbe0e4f7a2b8d76dfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "783c46a969bc36621755f7f331f924fafcc641f49eddd8cbe0e4f7a2b8d76dfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "783c46a969bc36621755f7f331f924fafcc641f49eddd8cbe0e4f7a2b8d76dfd", kill_on_drop: false }` [INFO] [stdout] 783c46a969bc36621755f7f331f924fafcc641f49eddd8cbe0e4f7a2b8d76dfd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3f45b485893e45e6c68103e1abeb95d2ecd4fb5f44e34fcdcafec73995645acc [INFO] running `Command { std: "docker" "start" "-a" "3f45b485893e45e6c68103e1abeb95d2ecd4fb5f44e34fcdcafec73995645acc", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.6 [INFO] [stderr] Compiling proc-macro2 v1.0.4 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling bitflags v1.2.0 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-bigint v0.2.3 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Compiling proc-macro-error v0.2.6 [INFO] [stderr] Compiling structopt-derive v0.3.2 [INFO] [stderr] Compiling num-derive v0.3.0 [INFO] [stderr] Checking structopt v0.3.2 [INFO] [stderr] Checking recorder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::tone::Tone` [INFO] [stdout] --> src/notation.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 59 | use crate::tone::Tone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::tone::Tone` [INFO] [stdout] --> src/notation.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 59 | use crate::tone::Tone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/finger.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/tone.rs:441:33 [INFO] [stdout] | [INFO] [stdout] 441 | Token::Notation(n) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/tone.rs:446:17 [INFO] [stdout] | [INFO] [stdout] 446 | t => s.to_owned(), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/tone.rs:474:33 [INFO] [stdout] | [INFO] [stdout] 474 | Token::Notation(n) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/tone.rs:441:33 [INFO] [stdout] | [INFO] [stdout] 441 | Token::Notation(n) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/tone.rs:446:17 [INFO] [stdout] | [INFO] [stdout] 446 | t => s.to_owned(), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/tone.rs:474:33 [INFO] [stdout] | [INFO] [stdout] 474 | Token::Notation(n) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.38s [INFO] running `Command { std: "docker" "inspect" "3f45b485893e45e6c68103e1abeb95d2ecd4fb5f44e34fcdcafec73995645acc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f45b485893e45e6c68103e1abeb95d2ecd4fb5f44e34fcdcafec73995645acc", kill_on_drop: false }` [INFO] [stdout] 3f45b485893e45e6c68103e1abeb95d2ecd4fb5f44e34fcdcafec73995645acc [INFO] checking jmjoy/recorder against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmjoy%2Frecorder" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jmjoy/recorder 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/jmjoy/recorder [INFO] finished tweaking git repo https://github.com/jmjoy/recorder [INFO] tweaked toml for git repo https://github.com/jmjoy/recorder written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/jmjoy/recorder 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ebe67c7aad5b48245985d1d31ce6a1446b8ae80cd8f773924be049780165c50c [INFO] running `Command { std: "docker" "start" "-a" "ebe67c7aad5b48245985d1d31ce6a1446b8ae80cd8f773924be049780165c50c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ebe67c7aad5b48245985d1d31ce6a1446b8ae80cd8f773924be049780165c50c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebe67c7aad5b48245985d1d31ce6a1446b8ae80cd8f773924be049780165c50c", kill_on_drop: false }` [INFO] [stdout] ebe67c7aad5b48245985d1d31ce6a1446b8ae80cd8f773924be049780165c50c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6c679138e5847e622be55bd0f9a26114a513b1c10df7fee2cf592d80f913379e [INFO] running `Command { std: "docker" "start" "-a" "6c679138e5847e622be55bd0f9a26114a513b1c10df7fee2cf592d80f913379e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.6 [INFO] [stderr] Compiling proc-macro2 v1.0.4 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling bitflags v1.2.0 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-bigint v0.2.3 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Compiling proc-macro-error v0.2.6 [INFO] [stderr] Compiling structopt-derive v0.3.2 [INFO] [stderr] Compiling num-derive v0.3.0 [INFO] [stderr] Checking structopt v0.3.2 [INFO] [stderr] Checking recorder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::tone::Tone` [INFO] [stdout] --> src/notation.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 59 | use crate::tone::Tone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::tone::Tone` [INFO] [stdout] --> src/notation.rs:59:9 [INFO] [stdout] | [INFO] [stdout] 59 | use crate::tone::Tone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/finger.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/tone.rs:441:33 [INFO] [stdout] | [INFO] [stdout] 441 | Token::Notation(n) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/tone.rs:446:17 [INFO] [stdout] | [INFO] [stdout] 446 | t => s.to_owned(), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/tone.rs:474:33 [INFO] [stdout] | [INFO] [stdout] 474 | Token::Notation(n) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/tone.rs:441:33 [INFO] [stdout] | [INFO] [stdout] 441 | Token::Notation(n) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/tone.rs:446:17 [INFO] [stdout] | [INFO] [stdout] 446 | t => s.to_owned(), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/tone.rs:474:33 [INFO] [stdout] | [INFO] [stdout] 474 | Token::Notation(n) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.79s [INFO] running `Command { std: "docker" "inspect" "6c679138e5847e622be55bd0f9a26114a513b1c10df7fee2cf592d80f913379e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c679138e5847e622be55bd0f9a26114a513b1c10df7fee2cf592d80f913379e", kill_on_drop: false }` [INFO] [stdout] 6c679138e5847e622be55bd0f9a26114a513b1c10df7fee2cf592d80f913379e