[INFO] fetching crate bartib 1.0.1...
[INFO] checking bartib-1.0.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate bartib 1.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bartib 1.0.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bartib 1.0.1
[INFO] finished tweaking crates.io crate bartib 1.0.1
[INFO] tweaked toml for crates.io crate bartib 1.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate bartib 1.0.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.24
[INFO] [stderr]   Downloaded textwrap v0.14.2
[INFO] [stderr]   Downloaded term_size v1.0.0-beta1
[INFO] [stderr]   Downloaded nu-ansi-term v0.34.0
[INFO] [stderr]   Downloaded smawk v0.3.1
[INFO] [stderr]   Downloaded thiserror v1.0.24
[INFO] [stderr]   Downloaded itertools v0.10.1
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded anyhow v1.0.42
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded syn v1.0.65
[INFO] [stderr]   Downloaded unicode-linebreak v0.1.2
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42c8090541400ef749666328a42ba57c87328e28b365cd432f182395267feb2f
[INFO] running `Command { std: "docker" "start" "-a" "42c8090541400ef749666328a42ba57c87328e28b365cd432f182395267feb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42c8090541400ef749666328a42ba57c87328e28b365cd432f182395267feb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42c8090541400ef749666328a42ba57c87328e28b365cd432f182395267feb2f", kill_on_drop: false }`
[INFO] [stdout] 42c8090541400ef749666328a42ba57c87328e28b365cd432f182395267feb2f
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a53c3bbaeb9829f6cb53583fc9c2b56c748d8adff870308612463ef57db4bc44
[INFO] running `Command { std: "docker" "start" "-a" "a53c3bbaeb9829f6cb53583fc9c2b56c748d8adff870308612463ef57db4bc44", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking term_size v1.0.0-beta1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking nu-ansi-term v0.34.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling unicode-linebreak v0.1.2
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking bartib v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `textwrap` is imported redundantly
[INFO] [stdout]  --> src/view/report.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use textwrap;
[INFO] [stdout]   |     ^^^^^^^^ the item `textwrap` 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 `textwrap` is imported redundantly
[INFO] [stdout]  --> src/view/table.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use textwrap;
[INFO] [stdout]   |     ^^^^^^^^ the item `textwrap` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `None` is imported redundantly
[INFO] [stdout]    --> src/data/activity.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |     use std::option::Option::None;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `None` is already defined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `textwrap` is imported redundantly
[INFO] [stdout]  --> src/view/report.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use textwrap;
[INFO] [stdout]   |     ^^^^^^^^ the item `textwrap` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `textwrap` is imported redundantly
[INFO] [stdout]  --> src/view/table.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use textwrap;
[INFO] [stdout]   |     ^^^^^^^^ the item `textwrap` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "a53c3bbaeb9829f6cb53583fc9c2b56c748d8adff870308612463ef57db4bc44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53c3bbaeb9829f6cb53583fc9c2b56c748d8adff870308612463ef57db4bc44", kill_on_drop: false }`
[INFO] [stdout] a53c3bbaeb9829f6cb53583fc9c2b56c748d8adff870308612463ef57db4bc44