[INFO] fetching crate modenv 0.4.2...
[INFO] testing modenv-0.4.2 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate modenv 0.4.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate modenv 0.4.2 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate modenv 0.4.2
[INFO] finished tweaking crates.io crate modenv 0.4.2
[INFO] tweaked toml for crates.io crate modenv 0.4.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate modenv 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7199461b68c16d71f805f68e5a5dd1f5ecf7969079ac2c7f9edc0b9216965a0a
[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" "7199461b68c16d71f805f68e5a5dd1f5ecf7969079ac2c7f9edc0b9216965a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7199461b68c16d71f805f68e5a5dd1f5ecf7969079ac2c7f9edc0b9216965a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7199461b68c16d71f805f68e5a5dd1f5ecf7969079ac2c7f9edc0b9216965a0a", kill_on_drop: false }`
[INFO] [stdout] 7199461b68c16d71f805f68e5a5dd1f5ecf7969079ac2c7f9edc0b9216965a0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8f09c082556e4fd45d5f49a2f8923b28946fc1553bbfa3baf18027156bcae04
[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" "f8f09c082556e4fd45d5f49a2f8923b28946fc1553bbfa3baf18027156bcae04", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling os_str_bytes v4.2.0
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]    Compiling clap v3.0.0-beta.5
[INFO] [stderr]    Compiling modenv v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ArgSettings`
[INFO] [stdout]  --> src/main.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | use clap::{App, AppSettings, Arg, ArgMatches, ArgSettings};
[INFO] [stdout]   |                                               ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::command::missing_keys`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::command::missing_keys;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::exit_with`
[INFO] [stdout]  --> src/command/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::exit_with;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `choose_default_envfile`
[INFO] [stdout]    --> src/main.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn choose_default_envfile(files: &Vec<PathBuf>) -> PathBuf {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/command/mod.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             file.write(data.as_bytes());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.35s
[INFO] running `Command { std: "docker" "inspect" "f8f09c082556e4fd45d5f49a2f8923b28946fc1553bbfa3baf18027156bcae04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8f09c082556e4fd45d5f49a2f8923b28946fc1553bbfa3baf18027156bcae04", kill_on_drop: false }`
[INFO] [stdout] f8f09c082556e4fd45d5f49a2f8923b28946fc1553bbfa3baf18027156bcae04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e10cdbc3d2cfabb7499364996157acb97b9d89d7085280240b7300d0900061ff
[INFO] running `Command { std: "docker" "start" "-a" "e10cdbc3d2cfabb7499364996157acb97b9d89d7085280240b7300d0900061ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling modenv v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ArgSettings`
[INFO] [stdout]  --> src/main.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | use clap::{App, AppSettings, Arg, ArgMatches, ArgSettings};
[INFO] [stdout]   |                                               ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::command::missing_keys`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::command::missing_keys;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::exit_with`
[INFO] [stdout]  --> src/command/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::exit_with;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `choose_default_envfile`
[INFO] [stdout]    --> src/main.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn choose_default_envfile(files: &Vec<PathBuf>) -> PathBuf {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/command/mod.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             file.write(data.as_bytes());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "e10cdbc3d2cfabb7499364996157acb97b9d89d7085280240b7300d0900061ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10cdbc3d2cfabb7499364996157acb97b9d89d7085280240b7300d0900061ff", kill_on_drop: false }`
[INFO] [stdout] e10cdbc3d2cfabb7499364996157acb97b9d89d7085280240b7300d0900061ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6402bcc84bd66a652a525c28f48c837e85cb34b10e9ac5af03faf2ca0f35e41a
[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" "6402bcc84bd66a652a525c28f48c837e85cb34b10e9ac5af03faf2ca0f35e41a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ArgSettings`
[INFO] [stderr]  --> src/main.rs:6:47
[INFO] [stderr]   |
[INFO] [stderr] 6 | use clap::{App, AppSettings, Arg, ArgMatches, ArgSettings};
[INFO] [stderr]   |                                               ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::command::missing_keys`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::command::missing_keys;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::exit_with`
[INFO] [stderr]  --> src/command/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::exit_with;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `choose_default_envfile`
[INFO] [stderr]    --> src/main.rs:105:4
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn choose_default_envfile(files: &Vec<PathBuf>) -> PathBuf {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/command/mod.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             file.write(data.as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `modenv` (bin "modenv" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/modenv-009970c1ea3a1780)
[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] running `Command { std: "docker" "inspect" "6402bcc84bd66a652a525c28f48c837e85cb34b10e9ac5af03faf2ca0f35e41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6402bcc84bd66a652a525c28f48c837e85cb34b10e9ac5af03faf2ca0f35e41a", kill_on_drop: false }`
[INFO] [stdout] 6402bcc84bd66a652a525c28f48c837e85cb34b10e9ac5af03faf2ca0f35e41a