[INFO] fetching crate snailshell 0.3.1...
[INFO] testing snailshell-0.3.1 against master#b03b3a7ec92682be2917540b679478d41c95a30c for pr-137122-1
[INFO] extracting crate snailshell 0.3.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate snailshell 0.3.1
[INFO] finished tweaking crates.io crate snailshell 0.3.1
[INFO] tweaked toml for crates.io crate snailshell 0.3.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate snailshell 0.3.1 on toolchain b03b3a7ec92682be2917540b679478d41c95a30c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate snailshell 0.3.1 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" "+b03b3a7ec92682be2917540b679478d41c95a30c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v3.2.15
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cb991ec594b5e6d953e482b3a77ce6e5695bea41ca4d93b60deff46ceb562a9
[INFO] running `Command { std: "docker" "start" "-a" "6cb991ec594b5e6d953e482b3a77ce6e5695bea41ca4d93b60deff46ceb562a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cb991ec594b5e6d953e482b3a77ce6e5695bea41ca4d93b60deff46ceb562a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb991ec594b5e6d953e482b3a77ce6e5695bea41ca4d93b60deff46ceb562a9", kill_on_drop: false }`
[INFO] [stdout] 6cb991ec594b5e6d953e482b3a77ce6e5695bea41ca4d93b60deff46ceb562a9
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16b4ceb9f60a9b152de4799d148e7714aa9b0700f1173df3bfcdebf68c4aa93a
[INFO] running `Command { std: "docker" "start" "-a" "16b4ceb9f60a9b152de4799d148e7714aa9b0700f1173df3bfcdebf68c4aa93a", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling os_str_bytes v6.2.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]    Compiling clap v3.2.15
[INFO] [stderr]    Compiling snailshell v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut graphemes = format_graphemes(text);
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.52s
[INFO] running `Command { std: "docker" "inspect" "16b4ceb9f60a9b152de4799d148e7714aa9b0700f1173df3bfcdebf68c4aa93a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b4ceb9f60a9b152de4799d148e7714aa9b0700f1173df3bfcdebf68c4aa93a", kill_on_drop: false }`
[INFO] [stdout] 16b4ceb9f60a9b152de4799d148e7714aa9b0700f1173df3bfcdebf68c4aa93a
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd76eaf11cc2c5d9dddfb486e13c269eef880f944bc97b378211da99ae11cf5a
[INFO] running `Command { std: "docker" "start" "-a" "bd76eaf11cc2c5d9dddfb486e13c269eef880f944bc97b378211da99ae11cf5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.8.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v3.2.15
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling crossterm v0.24.0
[INFO] [stderr]    Compiling snailshell v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut graphemes = format_graphemes(text);
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut graphemes = format_graphemes(text);
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.80s
[INFO] running `Command { std: "docker" "inspect" "bd76eaf11cc2c5d9dddfb486e13c269eef880f944bc97b378211da99ae11cf5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd76eaf11cc2c5d9dddfb486e13c269eef880f944bc97b378211da99ae11cf5a", kill_on_drop: false }`
[INFO] [stdout] bd76eaf11cc2c5d9dddfb486e13c269eef880f944bc97b378211da99ae11cf5a
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b28a883ecfe236ffe3f71014206a4f63b1e5f488e5125b121ae7c233e7774d2b
[INFO] running `Command { std: "docker" "start" "-a" "b28a883ecfe236ffe3f71014206a4f63b1e5f488e5125b121ae7c233e7774d2b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let mut graphemes = format_graphemes(text);
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `snailshell` (lib) generated 1 warning (run `cargo fix --lib -p snailshell` to apply 1 suggestion)
[INFO] [stderr] warning: `snailshell` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/snailshell-5f9b2a8e56636985)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/snailshell.rs (/opt/rustwide/target/debug/deps/snailshell-f471524bf97f1318)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests snailshell
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - snailprint (line 62) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - snailprint_d (line 87) ... ok
[INFO] [stdout] test src/lib.rs - snailprint_s (line 73) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 41.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b28a883ecfe236ffe3f71014206a4f63b1e5f488e5125b121ae7c233e7774d2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b28a883ecfe236ffe3f71014206a4f63b1e5f488e5125b121ae7c233e7774d2b", kill_on_drop: false }`
[INFO] [stdout] b28a883ecfe236ffe3f71014206a4f63b1e5f488e5125b121ae7c233e7774d2b