[INFO] cloning repository https://github.com/ducaale/syntax-highlighting-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ducaale/syntax-highlighting-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fducaale%2Fsyntax-highlighting-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fducaale%2Fsyntax-highlighting-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71816b6874901866823cd9a7b52a4767680449d9
[INFO] checking ducaale/syntax-highlighting-in-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fducaale%2Fsyntax-highlighting-in-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ducaale/syntax-highlighting-in-rust 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 git repo https://github.com/ducaale/syntax-highlighting-in-rust
[INFO] finished tweaking git repo https://github.com/ducaale/syntax-highlighting-in-rust
[INFO] tweaked toml for git repo https://github.com/ducaale/syntax-highlighting-in-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ducaale/syntax-highlighting-in-rust 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]  Downloading crates ...
[INFO] [stderr]   Downloaded yaml-rust v0.4.4
[INFO] [stderr]   Downloaded plist v1.0.0
[INFO] [stderr]   Downloaded unindent v0.1.6
[INFO] [stderr]   Downloaded indoc v1.0.2
[INFO] [stderr]   Downloaded hashbrown v0.9.0
[INFO] [stderr]   Downloaded onig v6.1.0
[INFO] [stderr]   Downloaded indexmap v1.6.0
[INFO] [stderr]   Downloaded onig_sys v69.5.1
[INFO] [stderr]   Downloaded syntect v4.4.0
[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] 70b8c8a4969ef63b475398e3e8dedc41b9f78ab4d81f91b1a9cf3df1018c5c2a
[INFO] running `Command { std: "docker" "start" "-a" "70b8c8a4969ef63b475398e3e8dedc41b9f78ab4d81f91b1a9cf3df1018c5c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70b8c8a4969ef63b475398e3e8dedc41b9f78ab4d81f91b1a9cf3df1018c5c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70b8c8a4969ef63b475398e3e8dedc41b9f78ab4d81f91b1a9cf3df1018c5c2a", kill_on_drop: false }`
[INFO] [stdout] 70b8c8a4969ef63b475398e3e8dedc41b9f78ab4d81f91b1a9cf3df1018c5c2a
[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] cea0d027d0fedec35ca3098b8ae7d12504e37e5fbca4695d7cb8748074913b12
[INFO] running `Command { std: "docker" "start" "-a" "cea0d027d0fedec35ca3098b8ae7d12504e37e5fbca4695d7cb8748074913b12", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling hashbrown v0.9.0
[INFO] [stderr]    Compiling line-wrap v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling flate2 v1.0.17
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling onig_sys v69.5.1
[INFO] [stderr]    Compiling unindent v0.1.6
[INFO] [stderr]    Compiling indoc v1.0.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking plist v1.0.0
[INFO] [stderr]    Compiling onig v6.1.0
[INFO] [stderr]     Checking syntect v4.4.0
[INFO] [stderr]    Compiling syntax-highlighting-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ansi_term` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ansi_term;
[INFO] [stdout]   |     ^^^^^^^^^ the item `ansi_term` 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 `ansi_term` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ansi_term;
[INFO] [stdout]   |     ^^^^^^^^^ the item `ansi_term` 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 21.04s
[INFO] running `Command { std: "docker" "inspect" "cea0d027d0fedec35ca3098b8ae7d12504e37e5fbca4695d7cb8748074913b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cea0d027d0fedec35ca3098b8ae7d12504e37e5fbca4695d7cb8748074913b12", kill_on_drop: false }`
[INFO] [stdout] cea0d027d0fedec35ca3098b8ae7d12504e37e5fbca4695d7cb8748074913b12
[INFO] checking ducaale/syntax-highlighting-in-rust against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fducaale%2Fsyntax-highlighting-in-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ducaale/syntax-highlighting-in-rust on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ducaale/syntax-highlighting-in-rust
[INFO] finished tweaking git repo https://github.com/ducaale/syntax-highlighting-in-rust
[INFO] tweaked toml for git repo https://github.com/ducaale/syntax-highlighting-in-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ducaale/syntax-highlighting-in-rust 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65f4b1aaf04cad3044df24a456559236d761ef013d5538a655a0fd60599949d4
[INFO] running `Command { std: "docker" "start" "-a" "65f4b1aaf04cad3044df24a456559236d761ef013d5538a655a0fd60599949d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65f4b1aaf04cad3044df24a456559236d761ef013d5538a655a0fd60599949d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65f4b1aaf04cad3044df24a456559236d761ef013d5538a655a0fd60599949d4", kill_on_drop: false }`
[INFO] [stdout] 65f4b1aaf04cad3044df24a456559236d761ef013d5538a655a0fd60599949d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 295f7a696d818d0ae43e5a3cc400a11cfbb003c950005401ed472e8e709a9172
[INFO] running `Command { std: "docker" "start" "-a" "295f7a696d818d0ae43e5a3cc400a11cfbb003c950005401ed472e8e709a9172", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling hashbrown v0.9.0
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling line-wrap v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling flate2 v1.0.17
[INFO] [stderr]    Compiling onig_sys v69.5.1
[INFO] [stderr]    Compiling unindent v0.1.6
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling indoc v1.0.2
[INFO] [stderr]     Checking plist v1.0.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling onig v6.1.0
[INFO] [stderr]     Checking syntect v4.4.0
[INFO] [stderr]    Compiling syntax-highlighting-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ansi_term` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ansi_term;
[INFO] [stdout]   |     ^^^^^^^^^ the item `ansi_term` 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 `ansi_term` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ansi_term;
[INFO] [stdout]   |     ^^^^^^^^^ the item `ansi_term` 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 19.42s
[INFO] running `Command { std: "docker" "inspect" "295f7a696d818d0ae43e5a3cc400a11cfbb003c950005401ed472e8e709a9172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "295f7a696d818d0ae43e5a3cc400a11cfbb003c950005401ed472e8e709a9172", kill_on_drop: false }`
[INFO] [stdout] 295f7a696d818d0ae43e5a3cc400a11cfbb003c950005401ed472e8e709a9172