[INFO] cloning repository https://github.com/mgattozzi/ysh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mgattozzi/ysh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Fysh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Fysh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35164f177db123aea1c6d115b6eb2af73af2608f
[INFO] checking mgattozzi/ysh against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Fysh" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mgattozzi/ysh on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mgattozzi/ysh
[INFO] finished tweaking git repo https://github.com/mgattozzi/ysh
[INFO] tweaked toml for git repo https://github.com/mgattozzi/ysh written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mgattozzi/ysh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/hawkw/crossterm.git`
[INFO] [stderr]     Updating git repository `https://github.com/myrrlyn/nom`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53deba61d8a3d1c959adbfe83bdcce45c9b97b623f7bd2bd208fa4bcfd2140f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "53deba61d8a3d1c959adbfe83bdcce45c9b97b623f7bd2bd208fa4bcfd2140f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53deba61d8a3d1c959adbfe83bdcce45c9b97b623f7bd2bd208fa4bcfd2140f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53deba61d8a3d1c959adbfe83bdcce45c9b97b623f7bd2bd208fa4bcfd2140f7", kill_on_drop: false }`
[INFO] [stdout] 53deba61d8a3d1c959adbfe83bdcce45c9b97b623f7bd2bd208fa4bcfd2140f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f601dd9e638ab6c00c3a95db7163c0e5ba31e389f01a38217ab348186b09e36d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f601dd9e638ab6c00c3a95db7163c0e5ba31e389f01a38217ab348186b09e36d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling winapi v0.3.5
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking termios v0.3.0
[INFO] [stderr]     Checking nom v4.0.0 (https://github.com/myrrlyn/nom?branch=2018-edition#f6b927b0)
[INFO] [stderr]     Checking crossterm v0.4.1 (https://github.com/hawkw/crossterm.git?branch=fix-write#3cb236d0)
[INFO] [stderr]     Checking shared_child v0.3.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking os_pipe v0.6.2
[INFO] [stderr]     Checking duct v0.11.0
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking ysh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::env::EnvVar`
[INFO] [stdout]   --> src/ast/mod.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     use crate::env::EnvVar;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/token.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |     compose(str::trim_left, tokenizer)
[INFO] [stdout]    |                  ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/token.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |     compose(str::trim_left, tokenizer)
[INFO] [stdout]    |                  ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]    --> src/token.rs:406:22
[INFO] [stdout]     |
[INFO] [stdout] 406 |         compose(str::trim_left, squote)("  'squoted'")
[INFO] [stdout]     |                      ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `env`
[INFO] [stdout]   --> src/ast/mod.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     crate env: EnvIter<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cmd`
[INFO] [stdout]   --> src/ast/mod.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     crate cmd: Cmd<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.32s
[INFO] running `Command { std: "docker" "inspect" "f601dd9e638ab6c00c3a95db7163c0e5ba31e389f01a38217ab348186b09e36d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f601dd9e638ab6c00c3a95db7163c0e5ba31e389f01a38217ab348186b09e36d", kill_on_drop: false }`
[INFO] [stdout] f601dd9e638ab6c00c3a95db7163c0e5ba31e389f01a38217ab348186b09e36d