[INFO] fetching crate diffr 0.1.5...
[INFO] checking diffr-0.1.5 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate diffr 0.1.5 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate diffr 0.1.5
[INFO] finished tweaking crates.io crate diffr 0.1.5
[INFO] tweaked toml for crates.io crate diffr 0.1.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate diffr 0.1.5 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate diffr 0.1.5 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termion v1.5.3
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49956d1d1073413001fd73ae3fafb69ae7b490e2c3beed6edc964f52154ef026
[INFO] running `Command { std: "docker" "start" "-a" "49956d1d1073413001fd73ae3fafb69ae7b490e2c3beed6edc964f52154ef026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49956d1d1073413001fd73ae3fafb69ae7b490e2c3beed6edc964f52154ef026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49956d1d1073413001fd73ae3fafb69ae7b490e2c3beed6edc964f52154ef026", kill_on_drop: false }`
[INFO] [stdout] 49956d1d1073413001fd73ae3fafb69ae7b490e2c3beed6edc964f52154ef026
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea550dd6db0762df2d41fba0ecca1043902ad480b8abb6a880e51565bb23292a
[INFO] running `Command { std: "docker" "start" "-a" "ea550dd6db0762df2d41fba0ecca1043902ad480b8abb6a880e51565bb23292a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking diffr v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/tests_cli.rs:91:6
[INFO] [stdout]    |
[INFO] [stdout] 91 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests_cli.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | /                 format!(
[INFO] [stdout] 26 | |                     "{}: expected empty, got\n\n{}",
[INFO] [stdout] 27 | |                     quote_or_empty(prefix),
[INFO] [stdout] 28 | |                     quote_or_empty(actual)
[INFO] [stdout] 29 | |                 )
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 25 ~                 
[INFO] [stdout] 26 |                     "{}: expected empty, got\n\n{}",
[INFO] [stdout] 27 |                     quote_or_empty(prefix),
[INFO] [stdout] 28 |                     quote_or_empty(actual)
[INFO] [stdout] 29 ~                 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests_cli.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 | /                 format!(
[INFO] [stdout] 34 | |                     "{}: expected at least\n\n{}\n\ngot\n\n{}",
[INFO] [stdout] 35 | |                     prefix,
[INFO] [stdout] 36 | |                     quote_or_empty(exp),
[INFO] [stdout] 37 | |                     quote_or_empty(actual)
[INFO] [stdout] 38 | |                 )
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 33 ~                 
[INFO] [stdout] 34 |                     "{}: expected at least\n\n{}\n\ngot\n\n{}",
[INFO] [stdout] ...
[INFO] [stdout] 37 |                     quote_or_empty(actual)
[INFO] [stdout] 38 ~                 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests_cli.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 | /                 format!(
[INFO] [stdout] 43 | |                     "{}: expected\n\n{}\n\ngot\n\n{}",
[INFO] [stdout] 44 | |                     prefix,
[INFO] [stdout] 45 | |                     quote_or_empty(exp),
[INFO] [stdout] 46 | |                     quote_or_empty(actual)
[INFO] [stdout] 47 | |                 )
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 42 ~                 
[INFO] [stdout] 43 |                     "{}: expected\n\n{}\n\ngot\n\n{}",
[INFO] [stdout] ...
[INFO] [stdout] 46 |                     quote_or_empty(actual)
[INFO] [stdout] 47 ~                 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/tests_cli.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 | /         format!(
[INFO] [stdout] 95 | |             "unexpected status: expected {} got {}",
[INFO] [stdout] 96 | |             string_of_status(descr.is_success),
[INFO] [stdout] 97 | |             string_of_status(output.status.success()),
[INFO] [stdout] 98 | |         )
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 94 ~         
[INFO] [stdout] 95 |             "unexpected status: expected {} got {}",
[INFO] [stdout] 96 |             string_of_status(descr.is_success),
[INFO] [stdout] 97 |             string_of_status(output.status.success()),
[INFO] [stdout] 98 ~         
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "ea550dd6db0762df2d41fba0ecca1043902ad480b8abb6a880e51565bb23292a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea550dd6db0762df2d41fba0ecca1043902ad480b8abb6a880e51565bb23292a", kill_on_drop: false }`
[INFO] [stdout] ea550dd6db0762df2d41fba0ecca1043902ad480b8abb6a880e51565bb23292a