[INFO] fetching crate rmesg 1.0.21...
[INFO] checking rmesg-1.0.21 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rmesg 1.0.21 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rmesg 1.0.21 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 crates.io crate rmesg 1.0.21
[INFO] finished tweaking crates.io crate rmesg 1.0.21
[INFO] tweaked toml for crates.io crate rmesg 1.0.21 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate rmesg 1.0.21 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-display-derive v0.1.1
[INFO] [stderr]   Downloaded nonblock v0.1.0
[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] f7f4201f4cf57f21ae3588ad91a35dcd865c53cc191eaea05398ccaf50296038
[INFO] running `Command { std: "docker" "start" "-a" "f7f4201f4cf57f21ae3588ad91a35dcd865c53cc191eaea05398ccaf50296038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7f4201f4cf57f21ae3588ad91a35dcd865c53cc191eaea05398ccaf50296038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7f4201f4cf57f21ae3588ad91a35dcd865c53cc191eaea05398ccaf50296038", kill_on_drop: false }`
[INFO] [stdout] f7f4201f4cf57f21ae3588ad91a35dcd865c53cc191eaea05398ccaf50296038
[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] c26fc133124ba978bf7f9a539b5d7e0038885b98093eaa26d661a7bbd32b91c1
[INFO] running `Command { std: "docker" "start" "-a" "c26fc133124ba978bf7f9a539b5d7e0038885b98093eaa26d661a7bbd32b91c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking futures-core v0.3.28
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking futures-task v0.3.28
[INFO] [stderr]     Checking os_str_bytes v6.5.1
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking aho-corasick v1.1.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking indexmap v1.9.3
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking nonblock v0.1.0
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling enum-display-derive v0.1.1
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking rmesg v1.0.21 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/error.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` 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]     Checking criterion v0.3.6
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/error.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` 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] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/error.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` 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 32.98s
[INFO] running `Command { std: "docker" "inspect" "c26fc133124ba978bf7f9a539b5d7e0038885b98093eaa26d661a7bbd32b91c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c26fc133124ba978bf7f9a539b5d7e0038885b98093eaa26d661a7bbd32b91c1", kill_on_drop: false }`
[INFO] [stdout] c26fc133124ba978bf7f9a539b5d7e0038885b98093eaa26d661a7bbd32b91c1