[INFO] cloning repository https://github.com/max-kay/phases
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/max-kay/phases" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-kay%2Fphases", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-kay%2Fphases'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac5a106bf826f3a7603c1b8c507778599ceb52b5
[INFO] checking max-kay/phases against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-kay%2Fphases" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/max-kay/phases 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] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/max-kay/phases
[INFO] finished tweaking git repo https://github.com/max-kay/phases
[INFO] tweaked toml for git repo https://github.com/max-kay/phases written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/max-kay/phases 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_seeder v0.2.3
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a6cb44d0fc95580c2edfc127bd653e83a9dd5c4bf48e285d2be11e2381e552ce
[INFO] running `Command { std: "docker" "start" "-a" "a6cb44d0fc95580c2edfc127bd653e83a9dd5c4bf48e285d2be11e2381e552ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6cb44d0fc95580c2edfc127bd653e83a9dd5c4bf48e285d2be11e2381e552ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6cb44d0fc95580c2edfc127bd653e83a9dd5c4bf48e285d2be11e2381e552ce", kill_on_drop: false }`
[INFO] [stdout] a6cb44d0fc95580c2edfc127bd653e83a9dd5c4bf48e285d2be11e2381e552ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7ceca36a21a3613cbe7d79d3192462a606e6b1786b1537f50cf09eff7ec97b7c
[INFO] running `Command { std: "docker" "start" "-a" "7ceca36a21a3613cbe7d79d3192462a606e6b1786b1537f50cf09eff7ec97b7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_pcg v0.3.1
[INFO] [stderr]     Checking rand_seeder v0.2.3
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking phases v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `drop` is imported redundantly
[INFO] [stdout]  --> examples/b_3_f.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::Write, mem::drop, sync::atomic::AtomicU64};
[INFO] [stdout]   |                                ^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `drop` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.16s
[INFO] running `Command { std: "docker" "inspect" "7ceca36a21a3613cbe7d79d3192462a606e6b1786b1537f50cf09eff7ec97b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ceca36a21a3613cbe7d79d3192462a606e6b1786b1537f50cf09eff7ec97b7c", kill_on_drop: false }`
[INFO] [stdout] 7ceca36a21a3613cbe7d79d3192462a606e6b1786b1537f50cf09eff7ec97b7c
[INFO] checking max-kay/phases against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-kay%2Fphases" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/max-kay/phases 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] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/max-kay/phases
[INFO] finished tweaking git repo https://github.com/max-kay/phases
[INFO] tweaked toml for git repo https://github.com/max-kay/phases written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/max-kay/phases 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a9c5af2bf692dcf1bb2ad2a1fbcafcaafe9ce38115eb8f4e67bd73e035fb7f77
[INFO] running `Command { std: "docker" "start" "-a" "a9c5af2bf692dcf1bb2ad2a1fbcafcaafe9ce38115eb8f4e67bd73e035fb7f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9c5af2bf692dcf1bb2ad2a1fbcafcaafe9ce38115eb8f4e67bd73e035fb7f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c5af2bf692dcf1bb2ad2a1fbcafcaafe9ce38115eb8f4e67bd73e035fb7f77", kill_on_drop: false }`
[INFO] [stdout] a9c5af2bf692dcf1bb2ad2a1fbcafcaafe9ce38115eb8f4e67bd73e035fb7f77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d225e157f598d6db7003dfcc1cc2ff4fa2723fbbc4d9ebcc7a7a044bcfbf13d4
[INFO] running `Command { std: "docker" "start" "-a" "d225e157f598d6db7003dfcc1cc2ff4fa2723fbbc4d9ebcc7a7a044bcfbf13d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_seeder v0.2.3
[INFO] [stderr]     Checking rand_pcg v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking phases v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `drop` is imported redundantly
[INFO] [stdout]  --> examples/b_3_f.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::Write, mem::drop, sync::atomic::AtomicU64};
[INFO] [stdout]   |                                ^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `drop` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.38s
[INFO] running `Command { std: "docker" "inspect" "d225e157f598d6db7003dfcc1cc2ff4fa2723fbbc4d9ebcc7a7a044bcfbf13d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d225e157f598d6db7003dfcc1cc2ff4fa2723fbbc4d9ebcc7a7a044bcfbf13d4", kill_on_drop: false }`
[INFO] [stdout] d225e157f598d6db7003dfcc1cc2ff4fa2723fbbc4d9ebcc7a7a044bcfbf13d4