[INFO] fetching crate bore 0.4.1...
[INFO] checking bore-0.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate bore 0.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bore 0.4.1 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 bore 0.4.1
[INFO] finished tweaking crates.io crate bore 0.4.1
[INFO] tweaked toml for crates.io crate bore 0.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate bore 0.4.1 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 wio v0.2.2
[INFO] [stderr]   Downloaded mio v0.7.14
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded indenter v0.3.3
[INFO] [stderr]   Downloaded owo-colors v1.3.0
[INFO] [stderr]   Downloaded nonymous v0.3.3
[INFO] [stderr]   Downloaded pledge v0.4.2
[INFO] [stderr]   Downloaded assert_matches v1.5.0
[INFO] [stderr]   Downloaded shlex v1.1.0
[INFO] [stderr]   Downloaded displaydoc v0.2.3
[INFO] [stderr]   Downloaded libloading v0.7.2
[INFO] [stderr]   Downloaded clang-sys v1.3.0
[INFO] [stderr]   Downloaded eyre v0.6.5
[INFO] [stderr]   Downloaded paste v1.0.6
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] [stderr]   Downloaded tokio v1.14.0
[INFO] [stderr]   Downloaded bindgen v0.58.1
[INFO] [stderr]   Downloaded nix v0.21.2
[INFO] [stderr]   Downloaded tokio-macros v1.6.0
[INFO] [stderr]   Downloaded unveil v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fbb8f47eacb398ae078e46cadb53ab61e3a0bf2a42b28df9c44d3fb177a869b6
[INFO] running `Command { std: "docker" "start" "-a" "fbb8f47eacb398ae078e46cadb53ab61e3a0bf2a42b28df9c44d3fb177a869b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbb8f47eacb398ae078e46cadb53ab61e3a0bf2a42b28df9c44d3fb177a869b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbb8f47eacb398ae078e46cadb53ab61e3a0bf2a42b28df9c44d3fb177a869b6", kill_on_drop: false }`
[INFO] [stdout] fbb8f47eacb398ae078e46cadb53ab61e3a0bf2a42b28df9c44d3fb177a869b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1f86f1f2c14a5ef1f979ed08a62bc776fb694f705bdfdda9513b0c0b5c7deb8d
[INFO] running `Command { std: "docker" "start" "-a" "1f86f1f2c14a5ef1f979ed08a62bc776fb694f705bdfdda9513b0c0b5c7deb8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling libloading v0.7.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking nix v0.21.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking pledge v0.4.2
[INFO] [stderr]     Checking unveil v0.3.1
[INFO] [stderr]     Checking owo-colors v1.3.0
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling displaydoc v0.2.3
[INFO] [stderr]     Checking nonymous v0.3.3
[INFO] [stderr]    Compiling bore v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `atty` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use atty::{self, Stream};
[INFO] [stdout]   |            ^^^^ the item `atty` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `atty` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use atty::{self, Stream};
[INFO] [stdout]   |            ^^^^ the item `atty` is already defined by prelude
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.99s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "1f86f1f2c14a5ef1f979ed08a62bc776fb694f705bdfdda9513b0c0b5c7deb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f86f1f2c14a5ef1f979ed08a62bc776fb694f705bdfdda9513b0c0b5c7deb8d", kill_on_drop: false }`
[INFO] [stdout] 1f86f1f2c14a5ef1f979ed08a62bc776fb694f705bdfdda9513b0c0b5c7deb8d
[INFO] checking bore-0.4.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate bore 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate bore 0.4.1 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 bore 0.4.1
[INFO] finished tweaking crates.io crate bore 0.4.1
[INFO] tweaked toml for crates.io crate bore 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate bore 0.4.1 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c82a79758f6ed3b018a7320c23f75374ac9088b98d344c6dde059463b8e46811
[INFO] running `Command { std: "docker" "start" "-a" "c82a79758f6ed3b018a7320c23f75374ac9088b98d344c6dde059463b8e46811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c82a79758f6ed3b018a7320c23f75374ac9088b98d344c6dde059463b8e46811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c82a79758f6ed3b018a7320c23f75374ac9088b98d344c6dde059463b8e46811", kill_on_drop: false }`
[INFO] [stdout] c82a79758f6ed3b018a7320c23f75374ac9088b98d344c6dde059463b8e46811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] afb857df73392dab552bec8c6296ef602cc78c5402efcab4aa0a6bb6d80a3207
[INFO] running `Command { std: "docker" "start" "-a" "afb857df73392dab552bec8c6296ef602cc78c5402efcab4aa0a6bb6d80a3207", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling libloading v0.7.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking nix v0.21.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking unveil v0.3.1
[INFO] [stderr]     Checking pledge v0.4.2
[INFO] [stderr]     Checking owo-colors v1.3.0
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling displaydoc v0.2.3
[INFO] [stderr]     Checking nonymous v0.3.3
[INFO] [stderr]    Compiling bore v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `atty` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use atty::{self, Stream};
[INFO] [stdout]   |            ^^^^ the item `atty` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `atty` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use atty::{self, Stream};
[INFO] [stdout]   |            ^^^^ the item `atty` is already defined by prelude
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.89s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "afb857df73392dab552bec8c6296ef602cc78c5402efcab4aa0a6bb6d80a3207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb857df73392dab552bec8c6296ef602cc78c5402efcab4aa0a6bb6d80a3207", kill_on_drop: false }`
[INFO] [stdout] afb857df73392dab552bec8c6296ef602cc78c5402efcab4aa0a6bb6d80a3207