[INFO] fetching crate dupe-krill 1.4.9...
[INFO] checking dupe-krill-1.4.9 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate dupe-krill 1.4.9 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate dupe-krill 1.4.9 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 dupe-krill 1.4.9
[INFO] finished tweaking crates.io crate dupe-krill 1.4.9
[INFO] tweaked toml for crates.io crate dupe-krill 1.4.9 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate dupe-krill 1.4.9 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.4.1
[INFO] [stderr]   Downloaded blake3 v1.4.1
[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] ca6bda3524f679e48e87810c8e719c747cd8625a96acf897efb416b8b5da934f
[INFO] running `Command { std: "docker" "start" "-a" "ca6bda3524f679e48e87810c8e719c747cd8625a96acf897efb416b8b5da934f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca6bda3524f679e48e87810c8e719c747cd8625a96acf897efb416b8b5da934f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca6bda3524f679e48e87810c8e719c747cd8625a96acf897efb416b8b5da934f", kill_on_drop: false }`
[INFO] [stdout] ca6bda3524f679e48e87810c8e719c747cd8625a96acf897efb416b8b5da934f
[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] c6f73c2303032c7b70d52a0747272536ed41372740226da88ddca745ce83c98a
[INFO] running `Command { std: "docker" "start" "-a" "c6f73c2303032c7b70d52a0747272536ed41372740226da88ddca745ce83c98a", kill_on_drop: false }`
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling blake3 v1.4.1
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking ctrlc v3.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking dupe-krill v1.4.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/hasher.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/hasher.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` 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 `Scanner` is imported redundantly
[INFO] [stdout]  --> src/bin.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use dupe_krill::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use dupe_krill::*;
[INFO] [stdout]   |     ------------- the item `Scanner` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Scanner` is imported redundantly
[INFO] [stdout]  --> src/bin.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use dupe_krill::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use dupe_krill::*;
[INFO] [stdout]   |     ------------- the item `Scanner` is already imported 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: 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 4.96s
[INFO] running `Command { std: "docker" "inspect" "c6f73c2303032c7b70d52a0747272536ed41372740226da88ddca745ce83c98a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6f73c2303032c7b70d52a0747272536ed41372740226da88ddca745ce83c98a", kill_on_drop: false }`
[INFO] [stdout] c6f73c2303032c7b70d52a0747272536ed41372740226da88ddca745ce83c98a
[INFO] checking dupe-krill-1.4.9 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate dupe-krill 1.4.9 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate dupe-krill 1.4.9 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 crates.io crate dupe-krill 1.4.9
[INFO] finished tweaking crates.io crate dupe-krill 1.4.9
[INFO] tweaked toml for crates.io crate dupe-krill 1.4.9 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate dupe-krill 1.4.9 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] f079b0a8608664bdc58063df064846067c90cf1c99b5018142ff3170e14cc05b
[INFO] running `Command { std: "docker" "start" "-a" "f079b0a8608664bdc58063df064846067c90cf1c99b5018142ff3170e14cc05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f079b0a8608664bdc58063df064846067c90cf1c99b5018142ff3170e14cc05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f079b0a8608664bdc58063df064846067c90cf1c99b5018142ff3170e14cc05b", kill_on_drop: false }`
[INFO] [stdout] f079b0a8608664bdc58063df064846067c90cf1c99b5018142ff3170e14cc05b
[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] ceee8f424eaedfa50d0eb8697e192c6ccc59d5de9f6cb4ba418c2a65ed4b7dd1
[INFO] running `Command { std: "docker" "start" "-a" "ceee8f424eaedfa50d0eb8697e192c6ccc59d5de9f6cb4ba418c2a65ed4b7dd1", kill_on_drop: false }`
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling blake3 v1.4.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking ctrlc v3.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking dupe-krill v1.4.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/hasher.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/hasher.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Scanner` is imported redundantly
[INFO] [stdout]  --> src/bin.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use dupe_krill::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use dupe_krill::*;
[INFO] [stdout]   |     ------------- the item `Scanner` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Scanner` is imported redundantly
[INFO] [stdout]  --> src/bin.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use dupe_krill::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use dupe_krill::*;
[INFO] [stdout]   |     ------------- the item `Scanner` is already imported 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 3.79s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ceee8f424eaedfa50d0eb8697e192c6ccc59d5de9f6cb4ba418c2a65ed4b7dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceee8f424eaedfa50d0eb8697e192c6ccc59d5de9f6cb4ba418c2a65ed4b7dd1", kill_on_drop: false }`
[INFO] [stdout] ceee8f424eaedfa50d0eb8697e192c6ccc59d5de9f6cb4ba418c2a65ed4b7dd1